IndraLab

Statements


USP1 deubiquitinates CHEK1. 3 / 3
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"Multiple ubiquitin ligases, including the SKP1-CUL1-F-box (SCF) complex, CUL4-DDB1, and HUWE1 [ 89–93 ] can target CHK1 for proteasomal degradation, whereas the deubiquitinases USP1, USP3, USP7, and A[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"Moreover, BRD7 knockdown specifically increased USP1 levels but had no effect on the levels of USP7 and ATXN3, suggesting that increased USP1 may deubiquitinate and stabilize CHK1 (Figs."

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"Interestingly, USP1 silencing only partially reversed the protein levels of CHK1 (Fig. 3B, lanes 3 versus 2 and 1) and totally reversed the protein half-life and ubiquitination of CHK1, which further indicates BRD7 could negatively regulate CHK1 transcription."