✉news ScienceBiology first seen 3 h ago, last 57 min ago, peak #18
p53 prevents chromothripsis by balancing transcription and replication
Original: p53 keeps a transcription–replication balance that prevents chromothripsis
A Nature study reports that the p53 protein, best known as a tumour suppressor, prevents chromothripsis — the shattering of chromosomes — by keeping transcription and DNA replication in balance. When p53 is missing or inactive, these processes collide, causing catastrophic genome damage that can drive cancer development. The finding links a classic cancer gene to a new mechanism of genome protection, and researchers say it may refine how tumour evolution and genome instability are understood.
Why now: p53 is central to cancer biology, and a newly reported mechanism explaining how it guards the genome draws wide attention from researchers and cancer clinicians.
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