ID 2.6.1.88 DE methionine transaminase. AN methionine-oxo-acid transaminase. CA a 2-oxocarboxylate + L-methionine = 4-methylsulfanyl-2-oxobutanoate + CA an L-alpha-amino acid. CC -!- The enzyme is most active with L-methionine. CC -!- It participates in the L-methionine salvage pathway from S-methyl- CC 5'-thioadenosine, a by-product of polyamine biosynthesis. CC -!- The enzyme from the bacterium Klebsiella pneumoniae can use several CC different amino acids as amino donor, with aromatic amino acids being CC the most effective. CC -!- The enzyme from the plant Arabidopsis thaliana is also a part of the CC chain elongation pathway in the biosynthesis of methionine-derived CC glucosinolates. DR Q9M401, BCAT3_ARATH; Q9LE06, BCAT4_ARATH; Q9C969, ISS1_ARATH ; DR P77806, YBDL_ECOLI ; //