. . . . . . . . "Missing loss of kinase activity." . "539"^^ . . "540"^^ . . "Mutagenesis site occurs in NX_P21802-20 at amino acids 539 - 540." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "1" . . .