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B6db activities:
Description Cysteate synthase
Catalyzed reaction O-phospho-L-serine + sulfite = L-cysteate + phosphate.
Cofactor Pyridoxal-phosphate.
Comments A pyridoxal-phosphate protein. It is highly specific for O-phospho-L-serine and sulfite. The reaction proceeds through a dehydroalanine (2-aminoacrylic acid) intermediate. The enzyme from Methanosarcina acetivorans is evolutionarily related to threonine synthase (EC, but the reaction is more similar to that of O-phosphoserine sulfhydrylase (EC
In methanogens, this enzyme participates in that the biosynthesis of the essential coenzyme M (2-mercaptoethanesulfonate).
Organisms -Eubacteria -Archea

Family (0)
Links Enzyme (activities)
BRENDA (activities)
KEGG (pathways)
PLPMDB (PLP mutants)
References Articles on
last changed 2018/07/09 13:48

B6db activities