. . . . . . . . "Proton donor" . "647"^^ . . "647"^^ . . "An active site occurs in NX_O00408-4 at amino acids 647 - 647." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "1" . . .