Reaction: Phosphorylation and activation of CHEK2 by ATM
- in pathway: G2/M DNA damage checkpoint
Activated ATM phosphorylates CHEK2 (CHK2, Cds1) on threonine residue T68 (Matsuoka et al. 2000, Melchionna et al. 2000). The presence of BRCA1 and TP53BP1 positively regulates ATM-mediated phosphorylation of CHEK2 (Wang et al. 2002, Foray et al. 2003). ATM-mediated phosphorylation causes formation of CHEK2 dimers and dissociation of CHEK2 from chromatin (Li and Stern 2005).
Reaction - small molecule participants:
ADP [nucleoplasm]
ATP [nucleoplasm]
ADP [nucleoplasm]
ATP [nucleoplasm]
Reactome.org reaction link: R-HSA-69891
======
Reaction input - small molecules:
ATP(4-)
ATP(4-)
Reaction output - small molecules:
ADP(3-)
ADP(3-)
Reactome.org link: R-HSA-69891