Reaction: ATR phosphorylates TP53
- in pathway: G2/M DNA damage checkpoint
ATR, bound to DNA damage sites, phosphorylates TP53 (p53) at serine residue S15. S15 phosphorylation stabilizes TP53 by inhibiting the binding of TP53 to the ubiquitin ligase MDM2 (Tibbetts et al. 1999, Lakin et al. 1999).
Reaction - small molecule participants:
ADP [nucleoplasm]
ATP [nucleoplasm]
ADP [nucleoplasm]
ATP [nucleoplasm]
Reactome.org reaction link: R-HSA-6799332
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Reaction input - small molecules:
ATP(4-)
ATP(4-)
Reaction output - small molecules:
ADP(3-)
ADP(3-)
Reactome.org link: R-HSA-6799332