. . . . . . . . "Targeted to plasma membrane; sialic acid uptake strongly activated at acidic pH." . "22"^^ . . "23"^^ . . "Mutagenesis site occurs in NX_Q9NRA2-2 at amino acids 22 - 23." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "2" . . .