Cell Cycle Regulates Nuclear Stability of AID and Determines the Cellular Response to AID

AID (Activation Induced Deaminase) deaminates cytosines in DNA to initiate immunoglobulin gene diversification and to reprogram the genome in early development. AID is potentially highly mutagenic, as it deaminates C to U within single-stranded regions. Here we show that AID abundance is regulated by cell cycle, and that high levels of nuclear AID are tolerated only in G1 phase. These results identify an unanticipated role for spatiotemporal regulation in balancing demands of AID-initiated mutagenesis and its potentially pathological outcomes.

Vyšlo v časopise: Cell Cycle Regulates Nuclear Stability of AID and Determines the Cellular Response to AID. PLoS Genet 11(9): e32767. doi:10.1371/journal.pgen.1005411
Kategorie: Research Article
prolekare.web.journal.doi_sk: 10.1371/journal.pgen.1005411


AID (Activation Induced Deaminase) deaminates cytosines in DNA to initiate immunoglobulin gene diversification and to reprogram the genome in early development. AID is potentially highly mutagenic, as it deaminates C to U within single-stranded regions. Here we show that AID abundance is regulated by cell cycle, and that high levels of nuclear AID are tolerated only in G1 phase. These results identify an unanticipated role for spatiotemporal regulation in balancing demands of AID-initiated mutagenesis and its potentially pathological outcomes.


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