IndraLab

Statements


Mutated ASXL1 activates BAP1. 6 / 6
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"ASXL1 mutations found in AML aberrantly enhance the DUB activity of BAP-1 and thus, deplete the levels of H3K27me 3."

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"Simultaneous overexpression of BAP1 and mutant ASXL1 promotes the deubiquitinase activity of BAP1, leading to the loss of H2AK119Ub followed by H3K27me3 reduction (Balasubramani et al., 2015)."

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"In our model, BAP1 mRNA did not change in KI mice, and physiological expression of Asxl1 mutant seemed to mildly support Bap1 function, which is not sufficient for global H3K27me3 reduction."

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"However, recent studies have reported that hyperactive catalytic function of BAP1 caused by ASXL1 mutation in haematopoietic cells disturbs normal haematopoiesis and promotes myeloid leukaemogenesis i[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"Mechanistically, BAP1 mono-ubiquitinated and stabilized mutant ASXL1, which in turn enhanced the DUB activity of BAP1."

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"Monoubiquitination of mutant ASXL1 enhanced the catalytic function of BAP1, resulting in a profound reduction in H2AK119ub by counteracting the PRC1 complex."