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B6db activities:
Description L-glutamine--4-(methylsulfanyl)-2-oxobutanoate aminotransferase
Alternative names L-glutamine:4-(methylsulfanyl)-2-oxobutanoate transaminase;
mtnE (gene name);
Solyc11g013170.1 (locus name)
Catalyzed reaction L-glutamine + 4-(methylsulfanyl)-2-oxobutanoate = 2-oxoglutaramate + L-methionine
Cofactor Pyridoxal phosphate
Comments A pyridoxal-phosphate protein. The enzyme, found in both prokaryotes and eukaryotes, catalyses the last reaction in a methionine salvage pathway. In mammals this activity is catalysed by the multifunctional glutamine transaminase K (cf. EC, glutamine–phenylpyruvate transaminase).
Organisms -Eubacteria -Plants

Family (0)
Links Enzyme (activities)
BRENDA (activities)
KEGG (pathways)
PLPMDB (PLP mutants)
 Ellens KW, Richardson LG, Frelin O, Collins J, Ribeiro CL, Hsieh YF, Mullen RT, Hanson AD (2015) Evidence that glutamine transaminase and omega-amidase potentially act in tandem to close the methionine salvage cycle in bacteria and plants Phytochemistry 113 160-9.

Articles on
last changed 2019/10/18 12:08

B6db activities