. . . . . . . . . . . . . . . . . . . . . . . . . . "metk1_rat"^^ . "Methionine adenosyltransferase 1"^^ . "Methionine adenosyltransferase I/III"^^ . "Mat1a"^^ . "Ams1"^^ . . "S-adenosylmethionine synthase isoform type-1"^^ .