[Term] id: PR:000025220 name: S-adenosylmethionine synthetase isoform 1 def: "An S-adenosylmethionine synthetase that is a translation product of some mRNA whose exon structure and start site selection renders it capable of giving rise to a protein with the amino acid sequence represented by UniProtKB:P0A817-1 or a 1:1 ortholog thereof." [EcoCyc:S-ADENMETSYN-MONOMER] comment: Category=sequence. synonym: "metK/iso:1" EXACT PRO-short-label [PRO:DNx] property_value: has_archetype PR:P0A817-1 is_a: PR:000023216 ! S-adenosylmethionine synthetase