. . . . . . . . . "18"^^ . . "18"^^ . . "Phosphoserine; by CDK2 and CDK4 modification of amino acid 18 of NX_P84022-4" . . . . . . . "neXtProt gold" . . "10.1038/nature02650" . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "1" . . .