. . . . . . . . "Purine nucleotide phosphoramidate" . "43"^^ . . "44"^^ . . "A nucleotide phosphate-binding region occurs in NX_P49773-1 at amino acids 43 - 44." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "2" . . .