. . . . . . . . . . . . . . . . . . . . . . . . . . "metk1_human"^^ . "Methionine adenosyltransferase 1"^^ . "MAT1A"^^ . "Methionine adenosyltransferase I/III"^^ . "AMS1"^^ . "MATA1"^^ . . "S-adenosylmethionine synthase isoform type-1"^^ .