. . . . . . . . . "503"^^ . . "503"^^ . . "Phosphotyrosine; Phosphorylation of this site highly increased in mitosis relative to S phase; by BTK modification of amino acid 503 of NX_P78347-1" . . . . . . . "neXtProt gold" . . "10.1074/jbc.M103692200" . "10.1126/scisignal.2000475" . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "2" . . .