. . . . . . . . "Abolishes enzyme activity. Increases KM by over 1000-fold." . "423"^^ . . "423"^^ . . "Mutagenesis site occurs in NX_P19440-1 at amino acids 423 - 423." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "2" . . .