Physiological modulation of endogenous BRCA1 p220 abundance suppresses DNA damage during the cell cycle

Endogenous BRCA1 p220 expression peaks in S and G2 when it is activated, and the protein participates in certain key DNA damage responses. In contrast, its expression is markedly reduced in G0/G1. While variations in transcription represent a significant part of p220 expression control, there is at...

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