The ataxia telangiectasia mutated- and rad3-related kinase (ATR)/Chk1 pathway is a sentinel of cell Rabbit Polyclonal to AIBP. cycle progression. In vitro analyses indicate that p90 RSK phosphorylates Ser-280 in Chk1 stoichiometrically. As well as Chk1 phosphorylation at Ser-345 by ATR and its own autophosphorylation at Ser-296 that are crucial for checkpoint signaling Chk1-Ser-280 phosphorylation… Continue reading The ataxia telangiectasia mutated- and rad3-related kinase (ATR)/Chk1 pathway is a