PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19701798-2 2010 Two genes (MAT1A and MAT2A) encode for the catalytic subunit of MAT, while a third gene (MAT2beta) encodes for a regulatory subunit (MAT II beta) that regulates the activity of the MAT2A-encoded isoenzyme and intracellular S-adenosylmethionine levels. S-Adenosylmethionine 223-243 methionine adenosyltransferase 1A Sus scrofa 11-16