. . . . . . . . "Proton acceptor" . "191"^^ . . "191"^^ . . "An active site occurs in NX_P21860-5 at amino acids 191 - 191." . . . . . "neXtProt gold" . . . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "1" . . .