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2.5.1.65: O-phosphoserine sulfhydrylase

This is an abbreviated version!
For detailed information about O-phosphoserine sulfhydrylase, go to the full flat file.

Word Map on EC 2.5.1.65

Reaction

O-phospho-L-serine
+
hydrogen sulfide
=
L-cysteine
 +
phosphate

Synonyms

APE1586, ApOPSS, CysK2, CysM, O-acetyl-L-serine sulfhydrylase, O-acetylserine sulfhydrylase, O-phospho-L-serine sulfhydrylase, O-phospho-L-serine-dependent S-sulfocysteine synthase, O-phosphoserine S-sulfocysteine synthase, O-phosphoserine specific cysteine synthase, O-phosphoserine(thiol)-lyase, OASS, OPSS, Rv1336, S-sulfocysteine synthase

ECTree

     2 Transferases
         2.5 Transferring alkyl or aryl groups, other than methyl groups
             2.5.1 Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)
                2.5.1.65 O-phosphoserine sulfhydrylase

pH Optimum

pH Optimum on EC 2.5.1.65 - O-phosphoserine sulfhydrylase

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pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
7.3 - 8.1
9
the pH optimum for the dephosphorylation reaction is around pH 9.0, most likely because the spontaneous hydrolysis of the aminoacrylate intermediate is faster at this pH value, resulting in an increased turnover rate in the absence of the sulfur donor