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
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2.5.1.65
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oropharyngeal
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aeropyrum
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pernix
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o-acetyl-l-serine
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o-acetylserine
- 2.5.1.65
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oropharyngeal
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aeropyrum
- pernix
- o-acetyl-l-serine
- o-acetylserine
Reaction
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
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KCat KM Value
KCat KM Value on EC 2.5.1.65 - O-phosphoserine sulfhydrylase
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81
pH 7.5, 80°C, mutant F225A, with O-phospho-L-serine
85
hydrogen sulfide
pH 7.5, 80°C, wild-type enzyme, with O-acetyl-L-serine
190
hydrogen sulfide
pH 7.5, 80°C, wild-type enzyme, with O-phospho-L-serine
0.841
pH 7.0, 22°C, recombinant wild-type enzyme
0.942
O-phospho-L-serine
pH 7.0, 22°C, recombinant mutant R243A enzyme
1.16
O-phospho-L-serine
dephosphorylation, pH 7.0, 22°C, recombinant wild-type enzyme
3.97
O-phospho-L-serine
apparent second-order rate of the first half-reaction, pH 7.0, 21°C, recombinant wild-type enzyme
additional information
the specificity constant kcat/Km of CysK2 for thiosulfate is 40fold higher than for sulfide
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additional information
additional information
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the specificity constant kcat/Km of CysK2 for thiosulfate is 40fold higher than for sulfide
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