IndraLab
Statements
reach
"These data suggests a hierarchy in the catalytic activity over the enzymatic system and the substrate type, with the inactive CSN5 DeltaC, WT form, CSN5 DeltaC, R106T that has basal activity, the MPN heterodimer alone that has robust isopeptidase activity on non physiological substrates and the CSN5 and CSN6 heterodimer in the context of CSN that recapitulates strong activity on both non physiological and physiological substrates."
reach
"The structure of the CSN5-CSN6 heterodimer (Figure S3A) was extracted from the crystal structure of human COP9 signalasome (PDB_code: 4D10) (Lingaraju et al., 2014) C-terminal regions of CSN5 (258–333) and CSN6 (215–316) were also deleted since they are not involved in catalysis and heterodimer formation can take place without them."
sparser
"Exploiting the above detailed finding that CSN5 ΔC and Nedd8 interaction proceeds through similar surfaces to that of AMSH-LP-distal ubiquitin's ( xref , xref ), a complex composed of CSN5 ΔC displaying an AMSH-LP-like Ins-1 conformation and of Nedd8 was assembled and used to probe the association of CSN5 ΔC and CSN6 ΔC ."
reach
"Alternatively, based on recent finding on the structure of eight-unit COP9 complex XREF_BIBR, it is possible to modulate COPS5 activity by tackling the interactions between COP9 subunits, particularly the interaction between COPS5 and COPS6 and CSN6 subunits that is crucial for maintaining the isopeptidase activity."