IndraLab

Statements


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"The two receptors also interact with low affinity in the absence of ligand, resulting in the formation of a less selective receptor complex capable of interacting with other members of the GDNF ligand[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"Thus, proximal events in RET independent GDNF signaling in RN33B and Schwann cells resemble the intracellular pathways activated by p140 NCAM, both in its time course and in the types of molecules inv[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"SORLA facilitates internalization of GFRalpha1 and GDNF complexes from the plasma membrane, resulting in lysosomal catabolism of GDNF but cell surface recycling of GFRalpha1."

sparser
"With a lower affinity, the GDNFGFRα1 complex can signal via the RET-independent mechanism with the neural cell adhesion molecule (NCAM); GDNF can also signal independently from GFRα1 by interacting with the heparin sulfate proteoglycan syndecan-3 [ xref , xref ]."

sparser
"For UB outgrowth, MM cells secrete GDNF which binds to the RET tyrosine kinase receptor and co-receptor GFRa1, both expressed in the nephric duct [ xref , xref , xref ]."

sparser
"GDNF dimers bind preferentially to GFRα1 with high affinity."

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"GDNF is expressed by the mesenchymal tissue surrounding the growing ureteric bud and binds to the tyrosine kinase receptor Ret and its co-receptor Gfra1, a glycosyl-phosphatidyl inositol linked protein."

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"Here, we find that SorLA acts as sorting receptor for the GDNF and GFRalpha1 complex, directing it from the cell surface to endosomes."

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"As shown in XREF_FIG, GFRA1 directly interacts with GDNF and alternatively, it can bind ARTN or NRTN; GFRA2 binds with NRTN; GFRA3 interacts with ARTN; and GFRA4 is the preferential co-receptor for PSPN."

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"GDNF has been shown to display greater affinity for GFRalpha1b than it does for GFRalpha1a and, as a result, GDNF and GFRalpha1 complexes are more likely to lead to RET phosphorylation at lower ligand concentrations."

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"The Glial cell line derived neurotrophic factor (GDNF) which binds to the receptor GFRA1 is known to play an important role in differentiation and the control of neuron survival."

sparser
"To understand the molecular mechanisms of ligand receptor interactions, we solved the GDNF-GFRa1 complex structure at 2.35 Å resolution, identified amino acid residues involved in this interaction and residues possibly interacting with RET (Parkash, V., et al. J. Biol."

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"As only GFRalpha1 can bind GDNF directly, receptor complex formation is thought to be initiated by GDNF binding to this receptor."

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"Together, these observations demonstrate the existence of a novel transmembrane receptor partner for the GDNF and GFRalpha1 complex and uncover an unexpected interplay between GDNF-GFRalpha1 and HGF-MET signaling in the early diversification of cortical GABAergic interneuron subtypes."

No evidence text available

sparser
"And while GFRα1 could bind GDNF, it was not expected to signal due to its lack of an intracellular domain."

No evidence text available

sparser
"The structure was used to model the homologous domain 2, the other half of the GDNF-binding fragment, and to construct the first structural model of the GDNF-GFRalpha1 interaction."

sparser
"The GPI-linked GFRα1 is localized, at least in part, to lipid rafts, and upon GDNF binding to GFRα1, the complex recruits Ret into the rafts, leading to the activation of the receptor and to the association of Ret with the downstream kinase, Src ( xref ; xref )."

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"However, GDNF can also bind GFRalpha2, and neurturin can bind GFRalpha1, albeit with lower affinities."

sparser
"High affinity binding of GDNF with GFRα1 occurs only in the presence of RET ( Cik et al., 2000 )."

sparser
"Three other structurally related members were identified from the GDNF family: neurturin, persephin, and artemin, which bind preferentially to GFRα 2-4 respectively, with GFRα1 preferentially binding to GDNF ( xref )."

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"Although the direct interaction of GDNF with the GFRalpha-1 and NCAM co-receptors may not be the only method to activate Fyn, this study does demonstrate that GDNF promotes SC differentiation via a Fyn dependent mechanism, either through GDNF binding with GFRalpha-1 and NCAM or homophilic binding of NCAM."

sparser
"The Glial cell line-derived neurotrophic factor (GDNF) which binds to the receptor GFRA1 is known to play an important role in differentiation and the control of neuron survival."

sparser
"These structures explained why an intact calcium-loaded RET ECD is required for GDNF-GFRα1 binding as the GFRα1 D3 loop-helix α4/GFRα1 D2 helix α1 wedge targets the calcium-dependent CLD(2-3) hinge while the GDNF dimer targets the CRD."

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"Recent data from the crystal structure of the GDNF and GFRalpha1 complex, show basic GDNF residues Arg35, Lys37, and Arg39 to be interacting with sucrose octasulfate, a heparin mimic."

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"GFRalpha1 preferentially binds to GDNF and forms a complex with the transmembrane protein RET to initiate essential intracellular signaling cascades through the Ras-MAPK, phosphoinositol 3-kinase, and Jun N-terminal kinase- and PLCgamma dependent pathways [XREF_BIBR]."

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"An alternative model for Ret activation suggests that the GPI linked GDNF and GFRa-1 complex is first released by lipase from the cell surface and then, as a soluble complex, binds to and activates a [MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"GDNF preferentially binds to GFRalpha1 and NTN to GFRalpha2, although in vitro studies have suggested that each ligand may be able signal through alternative GFR mechanisms at higher concentrations [XREF_BIBR, XREF_BIBR]."

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"This result is in agreement with our previous results indicating that the GDNF and GFRalpha1 complex plays a crucial role in the development of dendritic arbors and establishment of excitatory synaptic contacts."

sparser
"GDNF preferentially binds to GFRα1 [ xref ]."

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"In cells expressing c-Ret and GPI anchored protein GFRalpha1 (GDNF family receptor alpha1), which is primarily associated with lipid rafts, the binding of GDNF to GFRalpha1 results in a transient recruitment of c-Ret into the compartment."

sparser
"GDNF binds to GDNF family receptor alpha 1 (GFRa1), and the resulting complex activates the RET receptor tyrosine kinase and subsequent downstream signals."

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"Unfortunately, the atomic binding surfaces of the GFRalpha1 and GDNF complex to RET are still unknown, so these could not be compared."

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"More importantly, it was inhibited by soluble RET-Fc chimeric protein providing support for a direct interaction between a GDNF, GFR, and alpha1 complex and RET.Current evidence suggests that GDNF bin[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

"A receptor complex comprised of trnr1 (gdnfr alpha) and ret was recently identified and found to be capable of mediating both gdnf and ntn signaling"

sparser
"We hypothesize that the downregulation of GFRA2 might result in preferential binding of GDNF to GFRA1 (its higher affinity receptor) and promote cell survival."

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"Although GDNF primarily interacts with GFRalpha 1, it can also interact with the NTN- preferring GFRalpha 2 receptor, albeit with lower affinity."

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"High affinity binding of GDNF with GFRalpha1 occurs only in the presence of RET (Cik et al., 2000)."

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"Four different GFRalpha receptors (GFRalpha1-4) have been identified (Baloh et al., 1998; Buj-Bello et al., 1997; Enokido et al., 1998; Jing et al., 1996), and it is now established that GFRalpha1 bin[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"GDNF binding to GFRalpha1 also recruits Ret to the lipid rafts and triggers association with Src, which is required for effective downstream signalling, leading to differentiation and neuronal survival."

sparser
"As noted above, responsiveness of SGNs to GDNF and GDNF/GFRα1 suggests the presence of endogenous signaling receptors that mediate intracellular signaling after GDNF binding to GFRα1."

sparser
"It could be due to: (1) a very low level of GFRa1 is expressed in RA mechanoreceptors, which activates RET in cis in the presence of GDNF; or (2) GFRa1 expressed by neighboring DRG neurons binds GDNF and activates RET in RA mechanoreceptors in trans."

sparser
"Differences in downstream signaling from GDNF interactions with GFRα1 appear to be widespread."

sparser
"Following these observations, it was discovered that SorLA binds to GFRα1 with very high affinity and that SorLA is capable of binding to GFRα1 and GDNF simultaneously ( xref )."

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"Some trace residues had been proved to be important in ligand-receptor binding, especially in rat GFRalpha1, where alanine scanning mutagenesis confirmed that sites N (152) N (153), R (259), S (316) N (317) S (318) and Q (247) D (248) S (249) were critical for GFRalpha1 binding to GDNF or Ret and thus affected the formation of GDNF, GFRalpha1, and Ret complex."

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"First, GDNF may be bound by GFRalpha1."

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"While both GDNF and NTN bind GFRalpha1 and GFRalpha2, GDNF binds GFRalpha1 with more efficiency, and NTN binds GFRalpha2 preferentially (Klein et al., 1998; Sanicola et al., 1997)."

sparser
"Disruption of the niche or related signaling leads to stem cell loss. xref , xref The niche aging in the ovary is associated with the decline in ovarian reproductive function. xref – xref CADHERIN-22, a member of the cadherin superfamily, promotes FGSC self-renewal through interaction with the JAK and β-CATENIN. xref Meanwhile, CADHERIN-22 enhances PI3K-AKT3 signaling, thus, upregulating the expression of N-MYC and CYCLIN, and GDNF-GFRA1 activates AKT3 via PI3K or SFK, subsequently promoting self-renewal of FGSCs. xref GSK3 inhibitor BIO promotes proliferation of FGSCs through activation of β-CATENIN and E-CADHERIN, xref indicating an important role of GSK3 signaling in FGSCs proliferation."

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"XREF_BIBR, XREF_BIBR It has been shown that the GDNF and GFRalpha1 complex can activate not only the canonical GDNF receptor Ret, a receptor tyrosine kinase which signals through the sarcoma protein (Src)/rat sarcoma (Ras)/mitogen-activated protein kinase (MAPK), phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/Akt, NF-kappaB (nuclear factor ' kappa-light-chain-enhancer ' of activated B cells), JNK (c-Jun N-terminal kinases) and PLCgamma (phospholipase gamma) pathway, but also with other signaling inducing receptors."

sparser
"GDNF preferentially binds to GFRalpha-1 which then interacts with the receptor tyrosine kinase RET."

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"The GDNF and GFRalpha1 complex signals through interactions with the " rearranged during transfection " (RET) receptor or via the neural cell adhesion molecule (NCAM) with a lower affinity."

sparser
"Effects of gestational inflammation on age-related cognitive decline and hippocampal Gdnf-GFRα1 levels in F1 and F2 generations of CD-1 Mice."

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"GDNF binds to GDNF family receptor alpha 1 (GFRa1), and the resulting complex activates the RET receptor tyrosine kinase and subsequent downstream signals."

sparser
"The nerve-tumour regulatory axis GDNF-GFRA1 promotes tumour dormancy, imatinib resistance and local recurrence of gastrointestinal stromal tumours by achieving autophagic flux."

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"We show that the GDNF and GFRalpha1 complex inhibits the self-renewal capacity of mouse CNP cells induced by fibroblast growth factor 2 (FGF2), promoting neuronal differentiation."

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"Both GDNF and NTN can interact with either GFRalpha-1 or GFRalpha-2 receptors; however, GDNF preferentially binds to the GFRalpha-1 receptors, while NTN preferentially binds to GFRalpha-2 receptors [XREF_BIBR, XREF_BIBR]."

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"As noted above, responsiveness of SGNs to GDNF and GDNF and GFRalpha1 suggests the presence of endogenous signaling receptors that mediate intracellular signaling after GDNF binding to GFRalpha1."

sparser
"Unlike hRET, however, the extracellular domain of dRET was unable to interact with mammalian GDNF and GFRalpha1."

sparser
"This procedure allowed us to identify distinct regions of Ret that are physically engaged in the interaction with GDNF and GFRalpha1."

sparser
"In vitro binding assays indicate that GDNF binds preferentially to GFRα1, NRTN to GFRα2, ARTN to GFRα3, and PSPN to GFRα4 ( xref )."

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"Activation of the GDNF pathway is initiated via the ligation of GDNF to its co-receptor, GDNF family receptor alpha1 (GFRalpha1), which is a glycosylphosphatidylinositol (GPI)-linked membrane associated protein, and the recruitment of Ret to the GFRalpha1 and GDNF complex (XREF_FIG)."

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"Together, these results demonstrated a neurite outgrowth promoting activity of GDNF on hippocampal and cortical neurons that was dependent on NCAM expression and function and on the activity of Fyn ki[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"The GFRalpha-1 receptor was first reported in Cell in 1996 [XREF_BIBR], following its isolation, cloning, and characterization from rat retinal cells; a study which also detailed the interaction between GDNF, GFRalpha-1, and the cRET receptor."

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"Conditional ablation of GFRalpha1 in NSCs indicated that GDNF and GFRalpha1 complex is required for proper maturation and integration of adult-born GCs into preexisting hippocampal circuits."

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"Binding of GDNF to its co-receptor, GFRalpha1 leads to the recruitment of the RTK, Ret, to the GFRalpha1 and GDNF complex, and Ret is then activated by autophosphorylation."

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"GDNF binds with high affinity to the GDNF family receptor alpha-1 (GFRalpha-1) which is expressed in different brain areas."

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"Ret (rearranged during transformation) and the 140 kDa isoform of NCAM (neural cell adhesion molecule) have each been identified as receptors that can bind to the GDNF and GFRalpha1 complex and induce subsequent intracellular signaling, primarily via the PI3K and Akt and/or MEK and Erk MAPK pathways."

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"GDNF predominantly binds to GFRalpha1, NRTN to GFRalpha2, ARTN to GFRalpha3, and PSPN to GFRalpha4."

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"Specifically, activation of RET in cis by GFRalpha1 and GDNF complexes induced a dose dependent 10-fold increase in the number of neurite bearing cells compared to only 2- and 3-fold increases induced[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"GDNFGFRα1 signaling contributes to synapse development and the maturation of hippocampal neurons [ xref ]."

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"Alternatively, unlike cis binding, trans binding of GDNF and GFRalpha -1 to cRET can occur outside of lipid rafts (Paratcha et al., 2001)."

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"In vitro binding assays indicate that GDNF binds preferentially to GFRalpha1, NRTN to GFRalpha2, ARTN to GFRalpha3, and PSPN to GFRalpha4."

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"As negative controls, we used a scrambled sequence of the D4 aptamer (D4Sc in the XREF_FIG) and the recombinant EC-Ret protein lacking of the domains responsible of the functional interaction between Ret and the GFRalpha1 and GDNF complex (EC-Ret 1-387 in XREF_FIG)."

sparser
"GFRα1 preferentially binds to GDNF and forms a complex with the transmembrane protein RET to initiate essential intracellular signaling cascades through the Ras-MAPK, phosphoinositol 3-kinase, and Jun N-terminal kinase- and PLCγ-dependent pathways [ xref ]."

sparser
"There are four glycosyl-phosphatidylinositol-linked GFR receptors (GFRα1-4), which are membrane-anchored and bind their ligands with different affinities: GDNF preferentially binds to GFRα1, neurturin to GFRα2, artemin to GFRα3 and persephin to GFRα4 ( xref ; xref )."

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"We investigated the crystal structure of the mammalian GDNF and GFRalpha1 complex to see if the contact surface in the mammalian GDNF and GFRalpha1 complex is conserved in zebrafish and frog."

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"In a cell culture paradigm of N2aGT cells (neuroblastoma cell line), we show that TGF-beta signaling localizes the GDNF ligand binding receptor GFRa1 to the cell surface, which is a known mechanism by which TGF-beta is able to facilitate GDNF signaling."

sparser
"Binding of GDNF to GFRα1 and then to RET leads to RET dimerization, tyrosine autophosphorylation and activation of phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/Akt, mitogen-activated protein kinase (MAPK) and Src pathways [ xref ] (Fig.  xref , middle)."

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"After binding GDNF, GFRalpha1 mediates downstream signal transduction through interactions with signaling partners such as Ret [XREF_BIBR, XREF_BIBR], which is known to affect TH and DA function [XREF_BIBR]."

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"This established a solid basis for further study to find the key amino acid mediating the binding of GDNF and GFRalpha1."

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"Each GFL has a preferred GFRalpha co-receptor, with GDNF preferentially binding to GFRalpha1, NRTN to GFRalpha2, ARTN to GFRalpha3, and PSPN to GFRalpha4, although cross binding can occur."

sparser
"In this analysis, the D1 domain of GDNF-GFRα1 or GDF15-GFRAL complexes with RET ECD were missing."

sparser
"Formation of the GDNF-GFRα1 signaling complex leads to the autophosphorylation of Ret and the subsequent activation of downstream signaling cascades, such as the mitogen-activated protein kinase (MAPK), phosphoinositide 3-kinase and phospholipase Cγ/protein kinase C pathway ( xref ; xref )."

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"The GDNF and GFRalpha-1 complex then binds to RET, followed by intracellular signaling cascade activation of several pathways, including RAS and extracellular signal regulated kinase (ERK), p38 mitoge[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"Among these pathways, the nerve-tumour regulatory axis GDNF-GFRA1 is activated in GISTs, assists tumour cells in achieving dormancy and protects them from apoptosis under environmental stress by enhancing autophagic flux."

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"The GDNF/GFRalpha1 complex signals through interactions with the "rearranged during transfection" (RET) receptor or via the neural cell adhesion molecule (NCAM) with a lower affinity."

sparser
"When two molecules of RET are recruited to the lipid raft by the GDNF-GFRα1 dimeric complex, the two cysteine-rich domains of RET are brought into close proximity, thus promoting dimer formation and the activation of tyrosine kinase xref ."

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"Branching morphogenesis begins with the interaction between the metanephric mesenchyme and the ureteric bud, whereby inductive signals from both embryonic derivatives (GDNF is released from the metanephric mesenchyme and binds to its receptors c-RET and GFRalpha1 at the tips of the ureteric bud) initiate the branching process [XREF_BIBR, XREF_BIBR, XREF_BIBR, XREF_BIBR, XREF_BIBR]."

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"Thus, GDNF, the earliest discovered factor of the family, binds preferentially to GFRalpha-1, neurturin (NTN) to GFRalpha-2, artemin (ART) to GFRalpha-3, and persephin (PSP) to GFRalpha-4 (Jing et al.[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"Although both ligands interact with both receptors, cells expressing GFRalpha-1 bind GDNF more efficiently than neurturin, while cells expressing GFRalpha-2 bind neurturin preferentially."

sparser
"These results suggest an interaction of GFRalpha1 and cRET in the absence of GDNF and demonstrate that the high affinity binding can be measured only when cRET is present."

sparser
"GDNF binds to GDNF family receptor alpha 1 (GFRα1), causing phosphorylation of the tyrosine kinase receptor RE-arranged during transfection (RET)."

sparser
"Surprisingly little is known about the intracellular signaling pathways utilized by the GDNF-GFRα1 interaction to mediate cellular effect on dopamine neurons in the in vivo context."

sparser
"Although there are four GFRA family members, GDNF preferentially binds to GFRA1 to elicit activation of its signaling cascade xref ."

sparser
"Consistent with the existing models for GDNFGFRA1 binding, D2 was necessary to mediate the GDF15–GFRAL interaction ( xref )."

sparser
"Each GFL has a cognate GFRα (GFR) co-receptor that associate as GDNF-GFRα1 ( xref ), NRTN-GFRα2 ( xref ), ARTN-GFRα3 ( xref ), PSPN-GFRα4 ( xref ), and GDF15-GFRAL ( xref ; xref ; xref ; xref ) complexes, respectively."

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"Distinct hydrophobic and positively charged residues in this central region were required for binding of GFRalpha1 to GDNF."

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"Taken together, our results indicate that the GDNF and GFRalpha1 complex is essential for proper hippocampal circuit development."

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"There are four glycosyl-phosphatidylinositol-linked GFR receptors (GFRalpha1-4), which are membrane anchored and bind their ligands with different affinities : GDNF preferentially binds to GFRalpha1, neurturin to GFRalpha2, artemin to GFRalpha3 and persephin to GFRalpha4."

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"The GDNF and GFR-alpha 1 complex may sometimes function independently of RET (see above)."

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"GDNF binds to the GDNF family receptor alpha 1 (GFRa1) and then associates with the proto-oncogene tyrosine protein kinase receptor Ret (C-Ret)."

sparser
"The soluble Gfra1 stably binds to GDNF to act at a distance to promote neuronal survival and neurite outgrowth on RET-expressing neurons/axons [ xref , xref ]."

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"To test for the possibility that reduced pRET may result from impaired GDNF binding, differentiated SH-SY5Y cells with and without prior PDMP exposure were treated with GDNF followed by washing and ap[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"GDNF can also bind to GFRalpha2, NRTN to GFRalpha1, and ARTN to GFRalpha1 XREF_BIBR, XREF_BIBR."

sparser
"In mammalian testis, Fsh treatment is reported to stimulate the expression of GDNF from Sertoli cells, which binds GDNF family receptor alpha-1 (Gfra1) in undifferentiated spermatogonia A, enhancing their self-renewal and maintenance [ xref , xref , xref ]."

sparser
"In vitro studies have shown that GDNF forms a complex with GDNF family receptor alpha 1 (GFRα1) and acts as an axonal guidance signal during regeneration( xref ; xref ; xref ; xref )."

sparser
"Similar to the classical NTs, ligand-binding specificity for the GFLs exists with GDNF preferentially binding to GFRα1, but can act via GFRα2 with lower affinity."

sparser
"The GDNFGFRα1 complex then binds the RET [ xref , xref ] present on neuronal cell bodies and terminals of several different pathways, such as nigro–striatal dopaminergic neurons [ xref , xref ], spinal motor neurons [ xref ], noradrenergic neurons of the locus coeruleus [ xref ], enteric neurons [ xref ], and sensory neurons [ xref ]."

sparser
"The GDNFGFRα1 complex can also bind to and induce signaling through the neural adhesion molecule, NCAM [ xref , xref , xref , xref ]."

sparser
"As only GFRalpha1 can bind GDNF directly, receptor complex formation is thought to be initiated by GDNF binding to this receptor."

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"GDNF can also bind to either GFRalpha-1 or GFRalpha-2, and activate Ret in the presence of either binding receptor."

sparser
"GDNF’s interaction with GFRα1, promotes the recruitment, dimerization, and autophosphorylation of the Ret receptor ( xref )."

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"As expected, the positive controls (GDNF in GFRalpha1-RET and soluble GFRalpha1 and GDNF complex in GFP-RET expressing cells) increased RET pY by 3.8-fold (P = 0.0042, RM ANOVA with Dunnett 's post hoc test) and 4.9-fold (P = 0.0465, RM ANOVA with Dunnett 's post hoc test) in GFRalpha1-RET and GFP-RET expressing cells, respectively."

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"A direct test for the relative roles of cis and trans activation in vivo will require tissue specific ablations of GFRalpha1.Upon activation in cis, c-Ret is recruited to membrane rafts by a rapid ext[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"GDNF can bind to its ligand specific co-receptor, GDNF family receptor alpha-1 (GFRA1), which is a membrane protein that is expressed in most spermatogonial subtypes in mouse testes including As, Apr, and Aal spermatogonia, triggering signaling via the transmembrane receptor tyrosine kinase RET [XREF_BIBR - XREF_BIBR]."

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"XREF_BIBR, XREF_BIBR, XREF_BIBR GDNF dimers bind to GFRalpha1 (GDNF family receptor alpha-1) with a high affinity, and this complex signals through the transmembrane Ret receptor tyrosine kinase."

sparser
"Thus, GDNF (200 ng/ml) increased luciferase activity in GFRα1/RET-expressing reporter cells by 59 fold; ARTN (200 ng/ml) in GFRα3/RET-expressing reporter cells by 37 fold, and the complex of soluble GFRα1 and GDNF (200 ng/ml) in RET-expressing reporter cells by only seven fold."

sparser
"One possible mechanism whereby GDNF may interact with GFRα1 to facilitate dopaminergic pre-synaptic development would be as a ligand-induced cell adhesion molecule, as recently described for hippocampal neurons ( xref )."

sparser
"GDNF primarily associates with GFRα1, whereas neurturin, artemin, and persephin preferentially bind GFRα2, GFRα3, or GFRα4, respectively [ xref ]."

sparser
"Heparin neither inhibits nor potentiates GDNF-GFRalpha1 interaction, and the extracellular domain of GFRalpha1 does not bind to heparin itself, precluding heparin cross-bridging of cytokine and receptor polypeptides."

sparser
"GDNF preferentially binds GFRα1, NRTN preferentially binds GFRα2, ARTN binds GFRα3, and PSPN binds GFRα4 ( xref ; xref )."

sparser
"Botchkareva et al. had postulated that GDNF-GFRA1 signaling within proximal and distal outer root sheath (ORS) and inner root sheath (IRS) cells of HFs may play a direct role in blocking premature catagen entry based on their in situ mRNA expression pattern of Gfra1 and Gdnf xref ."

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"GDNF, NRTN, ARTN, and PSPN specifically bind to GFR-alpha 1, GFR-alpha 2, GFR-alpha 3, and GFR-alpha 4, respectively, form receptor complexes, and signal through the Ret RTK [XREF_BIBR]."

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"Among the four known GFRalpha subunits, GFRalpha1 preferentially binds to GDNF."

sparser
"The binding specificity is provided by a cell surface-bound GPI-anchored GDNF family receptor α (GFRα): GDNF preferentially binds to GFRα1, NRTN to GFRα2, ARTN to GFRα3, and PSPN to GFRα4 (Airaksinen and Saarma, xref ; Sidorova et al., xref )."

sparser
"According to the survival and differentiation responses of these stable PC12 cells upon GDNF stimulation and the GDNF-GFRalpha1-Ret interaction assay, residues 152NN153, Arg259, and 316SNS318 in the GFRalpha1 central region were found to be critical for GFRalpha1 binding to GDNF and eliciting downstream signal transduction."

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"Binding of GDNF and GFRalpha1 complex to RET results in its activation and phosphorylation of key docking tyrosine residues that signal through pathways including PLCgamma, PI3K and MAPK to elicit cellular responses."

sparser
"Four different GFRα receptors (GFRα1-4) have been identified ( Baloh et al., 1998; Buj-Bello et al., 1997; Enokido et al., 1998; Jing et al., 1996 ), and it is now established that GFRα1 binds prefere[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

No evidence text available

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"The lack of these regions in a recombinant Ret form results in the failure of both structural and functional binding of Ret to GFRalpha1 and GDNF complex."

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"Normal budding of the UB from the WD is dependent on glial cell line derived neurotrophic factor (GDNF) interacting with its co-receptors Ret and GFRalpha1."

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"GDNF and GFRalpha1 Complex Is Required to Control Cortical Precursor Proliferation in Response to FGF."

sparser
"Based on assays with both GPI-anchored and soluble receptors, we therefore conclude that D1 contributes to the optimal function of GFRalpha1 by stabilizing the interaction between GFRalpha1 and GDNF."

sparser
"It also influences receptor tyrosine kinase RET signaling via interaction with GDNF and its primary receptor GFRα1 ( xref )."

sparser
"Biochemical and cell culture studies suggest that GDNF binds to GFRα1 requiring the transmembrane tyrosine kinase Ret xref to form a functional receptor complex."

sparser
"The GDNF (glial cell line-derived neurotrophic factor)-binding receptor GFRalpha1 (GDNF family receptor alpha1) is attached to the membrane by a GPI (glycosylphosphatidylinositol) anchor and consists of three cysteine-rich domains."

sparser
"PD98059 blocked glial cell line-derived neurotrophic factor-induced PC12-GFRalpha1 cells neurite formation in a dose-dependent manner, without significantly altering cell viability."

sparser
"The results suggested that GDNF binds to GFRα1 and recruits the co-receptor RET in BMMSCs."

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"In GDNF-RET signaling pathway, GDNF first binds to GFRalpha1 and then binds to and activates RET."

sparser
"This position for the GFRAL D1 domain arises from a more upright position for GFRAL observed than GDNF-GFRα1 complexes ( xref )."

No evidence text available

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"Based on all these data it will be important to continue investigating the contribution of GDNF and GFRalpha1 complex in neurodevelopmental disease characterized by cognitive impairments."

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"GDNF binds with high affinity to the GDNF family receptor alpha-1 (GFRalpha-1), which is highly expressed in the midbrain."

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"In contrast, GDNF binds to GFRalpha1 and GFRalpha2, which both interact with the RET tyrosine kinase receptor to activate multiple pro survival, intracellular signaling pathways."

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"Binding of GDNF to GDNFR-a activates phosphorylation of the protein tyrosine kinase RET, even if GDNFR-a is released from the plasma membrane."

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"GDNF binding to its receptors RET and GFRalpha1 induces both ERK and MAPK and PI3K pathway activation."

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"GDNF forms a complex with GFRalpha1 and promotes the survival of neurons [XREF_BIBR]."

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"GDNF signaling is mediated through a two-component system consisting of the so called GDNF receptor-alfa (GFRalpha1) which binds to GDNF."

sparser
"Indeed, in MDCK cells and several other cell types, GDNF binding to GFRα1 activates Met indirectly via Src family kinases."

sparser
"We hypothesize that GDNF interacts with its receptor GFRα1, and signals primarily through RET tyrosine kinase second messenger pathways at the human BNB in vitro during recovery following diffuse endo[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"It has been shown that GDNF binds to GFRα1, NRTN to GFRα2, ARTN to GFRα3 and PSPN to GFRα4."

sparser
"The complex of GDNF and GFRα1, in turn, recruits a transmembrane rearranged during transfection (Ret) receptor and triggers downstream signaling, which controls mitochondrial morphology and complex I activity in dopaminergic neurons ( xref )."

sparser
"In cells expressing c-Ret and GPI-anchored protein GFRα1 (GDNF family receptor α1), which is primarily associated with lipid rafts, the binding of GDNF to GFRα1 results in a transient recruitment of c-Ret into the compartment."

sparser
"Previous studies showed that hRET ECD produced in a glycosylation-deficient Chinese hamster ovary (CHO) Lec8 cell line binds to hGDNF-rat GFRα1 (rGFRα1) ligand with a K d of 15 nM ( Kjaer et al., 20[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"The D1 domain is missing from previous structures of GDNF-GFRα1 and GDF15-GFRAL, but had been observed for NRTN-GFRα2 alone or bound to hRET ECD ( xref ; xref )."

reach
"In vitro studies show that there is preferential binding between GDNF and GFRalpha1."

reach
"Although GDNF responsiveness is abolished in Gfra1 (-/-) neurons, it can be restored upon addition of soluble GFRalpha1, a result that is only compatible with the existence of a previously unknown transmembrane signaling partner for the GDNF and GFRalpha1 complex in GABAergic neurons."

sparser
"Glu143 is also strictly conserved in all GFLs ( Figure 4 A) and is one of the most important binding determinants for the interactions between GDNF and GFRα1 ( Eketjall et al., 1999 )."

reach
"Glial cell line Derived Neurotrophic Factor (GDNF) binds the GFRalpha1 receptor, and the GDNF and GFRalpha1 complex binds to and activates the transmembrane RET tyrosine kinase to signal through intracellular Akt and Erk pathways."

reach
"Binding of GDNF to GFRA1 triggers RET signaling leading to ER phosphorylation and estrogen independent transcriptional activation of ER dependent genes."

sparser
"Using chemical crosslinking, it has been demonstrated that a specific interaction between GDNF and GFRα1 occurs with a higher affinity than that between GDNF and GFRα2."

sparser
"GDNF binds to GFRα1, neurturin activates the GFRα2 receptor, and artemin binds to the GFRα3 receptor."

sparser
"We did not detect any interaction between PSPN and GFRα1 in SPA system, whereas the positive control with radiolabeled GDNF bound strongly to GFRα1 (data not shown)."

reach
"To activate Ret, GDNF first binds with high affinity to the coreceptor GDNF receptor alpha-1 (GFRalpha1), and then as a complex, GDNF and GFRalpha1 bind and activate Ret."

reach
"GDNF binds to the receptor complex of Ret and Gfra-1 on NCCs, and Ret expression by NCCs is essential for GDNF induced migration."

reach
"A precedent for the potential therapeutic effects of neurotrophic factors in injured salivary glands has already been demonstrated in vivo with administration of GDNF or Neurturin, which bind Gfra1 and Gfra2 receptors and improve saliva secretion post-irradiation (Ferreira, et al., 2018; Xiao, et al., 2014; Knox, et al., 2013)."

sparser
"GDNF preferentially binds to the GFRα1, which then activates the receptor tyrosine kinase RET or the neural cell adhesion molecule ( xref )."

reach
"The GPI linked GFRalpha1 is localized, at least in part, to lipid rafts, and upon GDNF binding to GFRalpha1, the complex recruits Ret into the rafts, leading to the activation of the receptor and to the association of Ret with the downstream kinase, Src."

reach
"In conclusion, the SMN by down-regulating GDNF and its receptor gfralpha1 expression inhibits GDNF and gfralpha1 complex generation and consequently suppresses Bcl-6b expression."

sparser
"The HIRmAb section of the fusion protein binds the BBB HIR to mediate transport to the brain, and the GDNF of the fusion protein binds to GFRalpha1 to mediate GDNF pharmacologic action (15)."

sparser
"Each GFL has a preferred GFRα co-receptor, with GDNF preferentially binding to GFRα1, NRTN to GFRα2, ARTN to GFRα3, and PSPN to GFRα4, although cross-binding can occur ( xref )."

sparser
"GDNF binds to GFRα1 and then forms a complex with RET as a signaling component (Table xref )."

reach
"However, in a RET independent pathway, GPI anchored GFRA1 is localized to lipid rafts in the plasma membrane and then, the GDNF and GFRA1 complex triggers a Src dependent signaling pathway, leading to neuronal differentiation and survival [XREF_BIBR]."

reach
"According to the survival and differentiation responses of these stable PC12 cells upon GDNF stimulation and the GDNF-GFRalpha1-Ret interaction assay, residues 152NN153, Arg259, and 316SNS318 in the GFRalpha1 central region were found to be critical for GFRalpha1 binding to GDNF and eliciting downstream signal transduction."

reach
"GDNF binding to GFRalpha1 also recruits Ret to the lipid rafts and triggers association with Src, which is required for effective downstream signalling, leading to differentiation and neuronal survival."

reach
"Glu143 is also strictly conserved in all GFLs and is one of the most important binding determinants for the interactions between GDNF and GFRalpha1 (Eketjall et al., 1999)."

reach
"As GFRalpha1 possesses no transmembrane domain, intracellular signalling by the GDNF and GFRalpha1 complex is induced via recruitment of one of two co-receptors : REarranged during Transfection (RET) or intracellular domain containing isoforms of neural cell adhesion molecule (NCAM)."

reach
"With a lower affinity, the GDNF and GFRalpha1 complex can signal via the RET independent mechanism with the neural cell adhesion molecule (NCAM); GDNF can also signal independently from GFRalpha1 by interacting with the heparin sulfate proteoglycan syndecan-3 [XREF_BIBR, XREF_BIBR]."

sparser
"The GDNFGFRα1 complex is essential for proper hippocampal circuit development."

reach
"The results suggested that GDNF binds to GFRalpha1 and recruits the co-receptor RET in BMMSCs."

sparser
"This established a solid basis for further study to find the key amino acid mediating the binding of GDNF and GFRalpha1."

reach
"Although ligand binding for these receptors is somewhat promiscuous, GDNF preferentially binds to GFRalpha-1, and neurturin (a GDNF homologue) binds to GFRalpha-2 [7,18,19]."

reach
"GDNF binds to GFR-alpha1 thereby activating RET, which leads to the activation of the intracellular tyrosine kinase domain."

sparser
"In addition to the classical GDNF-GFRα1-Ret pathway, GDNF can bind to adhesion proteins such as E-cadherin and NCAM via GFRα1 in a Ret-independent way."

reach
"We hypothesize that the downregulation of GFRA2 might result in preferential binding of GDNF to GFRA1 (its higher affinity receptor) and promote cell survival."

sparser
"In addition, we found that the GDNF-GFRA1 axis protects tumor cells from apoptosis under metabolic stress via regulating lysosomal functions and autophagy flux, and participates in the regulation of cytosolic calcium ion signalling in a RET-independent and non-canonical way."

reach
"The established signaling mechanism for the GDNF and GFRalpha -1 complex is through binding to the tyrosine kinase receptor encoded by the c-ret proto-oncogene, and we also show here that c-ret mRNA is upregulated in both motoneurons and primary sensory neurons of aged rats."

sparser
"On the contrary, BSCs do express Gfra2 xref , suggesting the possibility that the GFRA2-neuturin network may also be compromised upon Ret ablation in addition to impairment of the GFRA1-GDNF network."

reach
"First, GDNF binds to GFRalpha1 in the absence of Ret."

reach
"The HIRmAb section of the fusion protein binds the BBB HIR to mediate transport to the brain, and the GDNF of the fusion protein binds to GFRalpha1 to mediate GDNF pharmacologic action (15)."

sparser
"Binding of GDNF to its receptor, GFRα1, recruits a tyrosine kinase, RET, into rafts where it undergoes autophosphorylation, a process that protects it from proteasomal degradation (Pierchala et al., xref )."

reach
"In vitro binding experiments with soluble forms of RET, RETL1 and RETL2 demonstrate that while RETL1 binds GDNF tightly to form a membrane associated complex which can then interact with RET, RETL2 only forms a high affinity complex with GDNF in the presence of RET."

sparser
"GDNF first binds to the glycosylphosphatidylinositol (GPI)-anchored co-receptor GDNF family receptor alpha-1 (GFR α 1) and then the GDNF-GFR α 1 complex binds to, and activates the transmembrane receptor tyrosine kinase RET."

sparser
"The interaction of GFRα1 with GDNF, a signaling molecule with a TGFβ fold, mediates binding and activation of the Ret tyrosine kinase receptor."

reach
"Binding of GDNF to GFRA1 and RET also triggers the activation of the canonical RAS-ERK1/2 pathway and regulates SSCs proliferation through the activation of another transcription factor, FOS (XREF_FIG)."

reach
"The heparin binding sequence is quite distinct from the binding site for the high affinity GDNF polypeptide receptor, GFRalpha1 (GDNF family receptor alpha1), and heparin bound GDNF is able to bind GFRalpha1 simultaneously."

reach
"The soluble Gfra1 stably binds to GDNF to act at a distance to promote neuronal survival and neurite outgrowth on RET expressing neurons and axons [XREF_BIBR, XREF_BIBR]."

reach
"GDNF binds to GFRalpha1 and then forms a complex with RET as a signaling component."

reach
"However, the signaling mechanisms of the GDNF and GFRalpha1 complex in SGNs have not been investigated, and it is not known whether the reported survival effects are mediated by NCAM, Ret of both molecules, downstream of the initial binding of GDNF to GFRalpha1."

reach
"In this case, GPI anchored GFRA1 and soluble GDNF form a complex that induces cell adhesion working in a similar status (XREF_FIG C)."

reach
"Several of the mutants produced at 30 degrees C regained their ability to bind to the GDNF and GFRalpha1 complex comparable to wild-type, demonstrating that the mutations affected RETECD folding but not function."

sparser
"From our data we conclude that TAMs, homing around metastatic nests, induce the autophagy flux of GC cells and promote the development of liver metastasis via GDNF-GFRA1 signalling."

reach
"GDNF and NRTN preferentially bind to GFR-alpha1 and GFR-alpha2, respectively."

sparser
"Briefly, GDNF binds its receptor GFRA1 on SSCs, followed by a subsequent signaling of a co-receptor RET, a transmembrane receptor tyrosine kinase, within all undifferentiated spermatogonia, which leads to upregulation in Src family kinase (SFK) signaling and activation of genes encoding key transcription factors (e.g., B cell CLL/lymphoma6, member B ( Bcl6b) , brachyury, Id4, ets variant gene 5 ( Etv5 ), and LIM homeobox protein 1 ( Lhx1 )), leading to self-renewal ( xref ) ( xref )."

sparser
"This is facilitated by each GFL binding to a preferred glycosyl phosphatidylinositol (GPI)–linked GDNF family receptor α (GFRα) co-receptor, e.g., GDNF predominantly binds to GFRα1, NRTN to GFRα2, ARTN to GFRα3, and PSPN to GFRα4."

reach
"According to the analysis of binding site for the GFRalpha1 and GDNF complex, the key residues for interactions with a small molecule are Arg171 and Arg224 residues of the receptor which is in line with the previously published data."

reach
"GDNF preferentially binds to GFRalpha1, neurturin to GFRalpha2, artemin to GFRalpha3 and persephin to GFRalpha4."

sparser
"Glial cell line-derived neurotrophic factor (GDNF) associates with heparan sulfate in a 2- O -sulfation-dependent manner, promoting the binding of this protein to its receptor component GFRα1 (Rickard et al., xref )."

reach
"However, c-ret, which is thought to mediate a signal evoked by binding of GDNF to GFRalpha-1, was not expressed in the capillaries of the brain cortex in 3-mo-old rats."

sparser
"GDNF predominantly binds to GFRα1, NRTN to GFRα2, ARTN to GFRα3, and PSPN to GFRα4."

reach
"Binding of GDNF to GFRalpha-1 and Ret also leads to the activation of the canonical Ras-Erk1/2 pathway and regulates SSC proliferation."

reach
"Briefly, GDNF binds its receptor GFRA1 on SSCs, followed by a subsequent signaling of a co-receptor RET, a transmembrane receptor tyrosine kinase, within all undifferentiated spermatogonia, which leads to upregulation in Src family kinase (SFK) signaling and activation of genes encoding key transcription factors (e.g., B cell CLL and lymphoma6, member B (Bcl6b), brachyury, Id4, ets variant gene 5 (Etv5), and LIM homeobox protein 1 (Lhx1)), leading to self-renewal (XREF_FIG)."

sparser
"Biochemical efforts to map the bipartite GDNF-GFRα1 binding site within RET ECD to a minimal-binding domain have implicated the entire RET ECD region."

reach
"The GDNF and GFRalpha-1 complex is then recognized by the transmembrane receptor tyrosine kinase RET."

sparser
"Distinct hydrophobic and positively charged residues in this central region were required for binding of GFRalpha1 to GDNF."

sparser
"In human pancreatic adenocarcinoma (MiaPaCa-2) cells, GDNF binds to its receptor GFRalpha1, activates the RET co-receptor, and promotes mitogen-activated protein kinase (MAPK) signaling to induce cancer cell migration towards nerve in vitro and animal models of PNI [ xref , xref ]."
| PMC

sparser
"GDNF stimulation can recruit Ret to lipid rafts, suggesting that GDNF-GFRα1 signaling potentiates ephrin-A5 reverse signaling by bringing the co-receptor Ret within close proximity to the GPI-anchored ephrin-A5."

reach
"GFRalpha1, lacking an intracellular domain, was originally assessed as a binding site for GDNF, serving only in the presentation of the GFRalpha1 and GDNF complex to Ret [7,8,11]."

reach
"Each family member binds a distinct GFRalpha family co-receptor, such that GDNF, NRTN and ARTN bind GFRalpha1, -alpha2, and -alpha3, respectively."

sparser
"In the kidneys, RET is activated by interaction with the ligand glial cell line-derived neurotrophic factor (GDNF) and coreceptor GFRα1."

sparser
"Based on this evidence, we aimed to explore whether Gdnf-GFRα1 expression contributes to cognitive decline in the F1 and F2 generations of mouse dams exposed to lipopolysaccharide (LPS) during late gestation, and to evaluate also the potential interference effect of pro-inflammatory cytokines."

sparser
"A separate study identified several regions within RET CLD1 that are important for ligand-coreceptor binding whereas characterization of human/ Xenopus RET ECD receptor chimeras implicated human RE[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

reach
"However, GDNF and GFRalpha1 complexes cleaved from the stromal cells were shown to elicit functional signaling through RET expressed on hematopoietic and leukemic cells suggesting a signaling pathway [MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"While both GDNF and NTN bind GFRα1 and GFRα2, GDNF binds GFRα1 with more efficiency, and NTN binds GFRα2 preferentially ()."

reach
"Using chemical crosslinking, it has been demonstrated that a specific interaction between GDNF and GFRalpha1 occurs with a higher affinity than that between GDNF and GFRalpha2."

reach
"In vitro studies have shown that following GDNF binding to GFRalpha1 the resulting complex recruits RET, leading to its activation by dimerization and autophosphorylation at specific cytoplasmic tyrosine residues, thus initiating a number of downstream intracellular pathways [XREF_BIBR]."

reach
"GDNF preferentially binds GFRalpha1, NRTN preferentially binds GFRalpha2, ARTN binds GFRalpha3, and PSPN binds GFRalpha4."

sparser
"GFRα1 mainly binds to GDNF, and GFRα2, 3, and 4 bind NTN, ART, and PSP, respectively [ xref ]."

reach
"Once activated by the complex GDNF and GFRalpha1, Ret isoforms undergo transphosphorylation on several tyrosine residues, activating the Ras and mitogen activated protein kinase (MAPK) and the phosphatidylinositol-3-kinase and AKT, responsible for cell survival or differentiation, and the phospholipase C-gamma (PLCgamma) pathway."

reach
"In immortalized cells, BT13 had similar efficacy to GFLs in RET, ERK, and AKT phosphorylation assays; however, in integral luciferase assay the effect of BT13 was much more modest compared with GDNF or soluble GDNF and GFRalpha1 complex."
| PMC

reach
"A final possibility might be that V5 and His tags on C-terminal could decrease NRTN bioactivity based on the finding that the C-terminus on GDNF is very close to the receptor binding site according to the crystal structure of GDNF and GFRalpha1 complex [XREF_BIBR]."

sparser
"It was suggested that the low-affinity GDNF:GFRα1 interaction, identified by xref in RET-deficient cells, is likely to be due to heparan-sulfate binding."

reach
"GDNF binds with high affinity to GDNF family receptor alpha-1 (GFR alpha-1)."

sparser
"Different GDNF-family ligands bind to different α-GDNF family receptors (GFRα): GDNF binds to GFRα1, Neurturin (NTN) binds to GFRα2, Artemin (ARTN) to GFRα3 and Persephin (PSPN) to GFRα4 [ xref ]."

reach
"GDNF preferentially binds to GFRalpha-1 which then interacts with the receptor tyrosine kinase RET."

reach
"The GDNF homodimer specifically binds to two GFRalpha1 to form a high affinity complex with the recruitment of Ret proteins."

reach
"Importantly, this HS binding region of GDNF is distinct from the binding site for the high-affinity GDNF receptor GFR-alpha1; thus, GDNF binds both HS and GFR-alpha1 simultaneously 15."

reach
"Binding of GDNF and neurturin to human GDNF family receptor alpha 1 and 2."

reach
"It has been shown that GDNF binds to GFRalpha1, NRTN to GFRalpha2, ARTN to GFRalpha3 and PSPN to GFRalpha4."

sparser
"Our data provide direct evidence of regionally defined patch-like GDNF-positive signal site in which GFRα1-positive spermatogonia possibly interact with GDNF in the basal compartment of the seminiferous tubules."

reach
"After GDNF and GFRalpha1 binding, Ret can either signal via the PI3K and Akt- or MEK and Erk-pathways depending upon its localization in lipid raft or non lipid raft compartments at the cell membrane, while NCAM is well recognized to signal via the MEK and Erk-pathway after activation of the Src family kinase Fyn."

reach
"GDNF binding to the GFRA1 and RET receptor complex (GDNF Receptor Alpha-1 and REarranged during Transfection) induces the activation of two signaling pathways involved in the survival and self-renewal of SSCs (XREF_FIG)."

reach
"In regards to the mechanism of actions of GDNF in neuroprotection, it has been demonstrated that GDNF binds to GFRalpha1 and Ret receptor complex and in turn activates the inositol triphosphate and the mitogen activated protein kinase intracellular cascades [XREF_BIBR]."

sparser
"GDNF binds to GFRα1 on the SSC membranes to form the GDNFGFRα1 complex, which binds and activates RET."

sparser
"The heparin-binding sequence is quite distinct from the binding site for the high affinity GDNF polypeptide receptor, GFRalpha1 (GDNF family receptor alpha1), and heparin-bound GDNF is able to bind GFRalpha1 simultaneously."

sparser
"GDNF preferably binds to GFRα1, but studies using GFRα1 knockout mice suggest that GDNF can act via GFRα2 with less affinity (Cacalano et al. xref ; Sariola and Saarma xref ; Schuchardt et al. xref ; Jing et al. xref ; Enomoto et al. xref )."

sparser
"Comparisons of interfaces within ternary RET complexes either between species (human and zebrafish GDNF-GFRα1) or paralogs (Neurturin-GFRα2 and GDF15-GFRAL) reveal considerable variation in contacts at site 1 and nearly identical contacts at site 2."

sparser
"These studies revealed that exogenous GFRα1 supplied in soluble form to primary MGE cultures derived from mutant mice lacking GFRα1 could rescue the effects of the mutation, a result that is only compatible with the existence of a transmembrane signaling partner for the GDNF-GFRα1 complex in GABAergic neurons."

reach
"GDNF preferentially binds to the GFRalpha1, which then activates the receptor tyrosine kinase RET or the neural cell adhesion molecule."

reach
"The binding of Gdnf to Gfralpha1 triggers phosphorylation of SRC-kinase family proteins followed by activation of PI3K and AKT pathway and eventually leads to self-renewal of SSCs via expression of N-myc gene [XREF_BIBR, XREF_BIBR]."

reach
"Gain- and loss-of-function assays demonstrate that the GDNF and GFRalpha1 complex promotes dendritic growth and postsynaptic differentiation in cultured hippocampal neurons."

reach
"GDNF signals through binding to GDNF family receptor alpha-1 (GFRalpha-1) followed by GDNF and GFRalpha-1 complex binding to receptor tyrosine kinase (RET) XREF_BIBR - XREF_BIBR."

sparser
"Among the four known GFRalpha subunits, GFRalpha1 preferentially binds to GDNF."

reach
"Based on assays with both GPI anchored and soluble receptors, we therefore conclude that D1 contributes to the optimal function of GFRalpha1 by stabilizing the interaction between GFRalpha1 and GDNF."

reach
"The binding of GDNF to Ret and GFRalpha1 leads to Ret phosphorylation (Kjaer and Ibanez, 2003; Sariola and Saarma, 2003), and thereby leads to the activation of several intracellular signaling pathways, including RAS and mitogen activated protein kinase and extracellular signal regulated kinase pathway and phosphoinositide 3-kinase/Akt/mammalian target of rapamycin (mTOR) pathway, which in turn promotes neuronal survival and differentiation (Creedon et al., 1997; Uesaka et al., 2013)."

sparser
"GDNF preferentially binds to GFRα1, NRTN to GFRα2, ARTN to GFRα3, and PSPN to GFRα4 (Airaksinen and Saarma xref ) (Fig.  xref )."

reach
"In the mouse, binding of GDNF to its receptor complex GFRA1 and RET activates a number of SRC family kinases (SFKs) that become phosphorylated."

reach
"The GDNF and GFRalpha1 complex promotes the development of hippocampal dendritic arbors and spines via NCAM."

reach
"We proceeded from two available crystal structures on the GDNF and GFRalpha1 complex downloaded from Protein Data Bank."

reach
"This is facilitated by each GFL binding to a preferred glycosyl phosphatidylinositol (GPI)-linked GDNF family receptor alpha (GFRalpha) co-receptor, e.g., GDNF predominantly binds to GFRalpha1, NRTN to GFRalpha2, ARTN to GFRalpha3, and PSPN to GFRalpha4."

reach
"Although there are four GFRA family members, GDNF preferentially binds to GFRA1 to elicit activation of its signaling cascade 24."

sparser
"Thus, both in the central and peripheral nervous systems, “ectopic” sites of GFRα1 expression are associated with terminals or axons from GDNF-responsive neurons, in line with the notion that GFRα1 mo[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"Glial cell line-Derived Neurotrophic Factor (GDNF) binds the GFRα1 receptor, and the GDNF-GFRα1 complex binds to and activates the transmembrane RET tyrosine kinase to signal through intracellular Akt/Erk pathways."

reach
"Cells responded in the expected manner to GDNF, NRTN, or soluble GFRalpha1 and GDNF complex which were used as positive controls."
| PMC

sparser
"GDNF preferentially binds to GFRα1, neurturin to GFRα2, artemin to GFRα3 and persephin to GFRα4."

reach
"GDNF primarily associates with GFRalpha1, whereas neurturin, artemin, and persephin preferentially bind GFRalpha2, GFRalpha3, or GFRalpha4, respectively [XREF_BIBR]."

sparser
"However, c-ret, which is thought to mediate a signal evoked by binding of GDNF to GFRalpha-1, was not expressed in the capillaries of the brain cortex in 3-mo-old rats."

reach
"SSCs self-renew under the influence of glial cell line derived neurotrophic factor (GDNF), which is produced by Sertoli cells and binds to the membrane receptor complex GFRA1 and RET."

sparser
"Binding of GDNF to GFRA1 triggers RET signaling leading to ER phosphorylation and estrogen-independent transcriptional activation of ER-dependent genes."

sparser
"However, the signaling mechanisms of the GDNF/GFRα1 complex in SGNs have not been investigated, and it is not known whether the reported survival effects are mediated by NCAM, Ret of both molecules, downstream of the initial binding of GDNF to GFRα1."

sparser
"The GDNFGFRα1 complex was observed to promote dendritic growth and postsynaptic differentiation in cultured hippocampal neurons through neural cell adhesion (NCAM) signaling [ xref ]."

reach
"One possible mechanism whereby GDNF may interact with GFRalpha1 to facilitate dopaminergic pre-synaptic development would be as a ligand induced cell adhesion molecule, as recently described for hippocampal neurons."

reach
"Different GDNF family ligands bind to different alpha-GDNF family receptors (GFRalpha) : GDNF binds to GFRalpha1, Neurturin (NTN) binds to GFRalpha2, Artemin (ARTN) to GFRalpha3 and Persephin (PSPN) to GFRalpha4 [XREF_BIBR]."

reach
"GDNF 's interaction with GFRalpha1, promotes the recruitment, dimerization, and autophosphorylation of the Ret receptor."

reach
"Canonically, the GDNF and GFRA1 complex activates RET to potentiate downstream signaling through the mitogen activated protein kinase (MAPK)/extracellular-signal-regulated kinase (ERK) and phosphoinositide 3-kinase (PI3K) pathways, promoting the differentiation, proliferation, and survival of neurons."

reach
"The GDNF homodimer first binds to GFRalpha1 (either a monomer or dimer), which then interacts with the extracellular domain of two RET molecules and induces their homodimerization and tyrosine autophosphorylation."

reach
"(c) The GDNF and GFRa-1 complex interacts with two Ret subunits, thereby producing a Ret dimer which can become activated by autotransphosphorylation of the tyrosine kinase domains."

reach
"Analogously, our data indicate that the recruitment of RET to lipid rafts by GPI anchored GFRalpha1 and GDNF complexes facilitates RET interaction with Src family kinases in vivo, since RET mislocaliz[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"GDNF forms a complex with GFRα1 and promotes the survival of neurons [ xref ]."

sparser
"As shown in xref , GFRA1 directly interacts with GDNF and alternatively, it can bind ARTN or NRTN; GFRA2 binds with NRTN; GFRA3 interacts with ARTN; and GFRA4 is the preferential co-receptor for PSPN."

reach
"In vitro studies have shown that following GDNF binding to GFRalpha1 the resulting complex recruits Ret, leading to its activation by dimerization and autophosphorylation at specific cytoplasmic tyrosine residues, thus initiating a number of downstream intracellular pathways XREF_BIBR."

reach
"GDNF and GFRalpha1 Complex Abrogates Self Renewing Activity of Cortical Neural Precursors Inducing Their Differentiation."