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B6db activities:
Description Cysteine aminotransferase
Catalyzed reaction L-cysteine + 2-oxoglutarate = mercaptopyruvate + L-glutamate.
Cofactor Pyridoxal-phosphate.
In rat, there are evidences that that cytosolic cysteine aminotransferase is identical with cytosolic aspartate aminotransferase (EC

In bacteria, different aspartate aminotransferases ( and aromatic amino acid aminotransferase ( can transaminate L-Cysteine.

Organisms -Eubacteria -Metazoa
Links Enzyme (activities)
BRENDA (activities)
KEGG (pathways)
PLPMDB (PLP mutants)
 Andreeßen C, Gerlt V, Steinbüchel A (2017) Conversion of cysteine to 3-mercaptopyruvic acid by bacterial aminotransferases Enzyme Microb Technol 99 38-48.

 Akagi, R. (1982) Purification and characterization of cysteine aminotransferase from rat liver cytosol Acta Med Okayama 36 187-97.

Articles on
last changed 2019/06/21 13:03

B6db activities