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Literature summary for 2.5.1.47 extracted from

  • Hensel, G.; Trueper, H.G.
    O-acetylserine sulfhydrylase and S-sulfocysteine synthase activities of Chromatium vinosum (1981), Arch. Microbiol., 130, 228-233.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
L-cysteine 35% inhibition at 4.5 mM Allochromatium vinosum
S-sulfocysteine 52% inhibition at 4.5 mM Allochromatium vinosum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.4
-
H2S pH 7.4, 37°C, enzyme 1 Allochromatium vinosum
1
-
O-acetyl-L-serine pH 7.4, 37°C, isoenzyme 1 Allochromatium vinosum
1.6
-
H2S pH 7.4, 37°C, isoenzyme 2 Allochromatium vinosum
15
-
O-acetyl-L-serine pH 7.4, 37°C, isoenzyme 2 Allochromatium vinosum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
50000
-
isoenzyme 2, gel filtration Allochromatium vinosum
56000
-
isoenzyme 1, gel filtration Allochromatium vinosum

Organism

Organism UniProt Comment Textmining
Allochromatium vinosum
-
two isoenzymes, one with additional S-sulfocysteine synthase activity
-

Purification (Commentary)

Purification (Comment) Organism
-
Allochromatium vinosum

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.43
-
isoenzyme 1 Allochromatium vinosum
245.6
-
isoenzyme 2 Allochromatium vinosum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
O-acetyl-L-serine
-
Allochromatium vinosum L-cysteine + acetate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.2
-
isoenzyme 1 Allochromatium vinosum

pH Range

pH Minimum pH Maximum Comment Organism
7.3 8.2 isoenzyme 2 Allochromatium vinosum