. . . . . . . . "Decreased basal activity at alkaline pH and loss of proton-sensing activity at low pH." . "42"^^ . . "42"^^ . . "Mutagenesis site occurs in NX_Q9UNW8-1 at amino acids 42 - 42." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "1" . . .