Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 2.5.1.47 extracted from

  • Hensel, G.; Trueper, H.G.
    O-Acetylserine sulfhydrylase and S-sulfocysteine synthase activities of Rhodospirillum tenue (1983), Arch. Microbiol., 134, 227-232.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
L-cysteine 28-41% inhibition at 4.5 mM, isoenzyme-dependent Rhodocyclus tenuis
S-sulfocysteine 24% inhibition at 4.5 mM, isoenzyme 1 Rhodocyclus tenuis
Sulfide
-
Rhodocyclus tenuis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.6
-
H2S isoenzyme 1 and 2 Rhodocyclus tenuis
2.9
-
O-acetyl-L-Ser isoenzyme 1 Rhodocyclus tenuis
50
-
O-acetyl-L-Ser isoenzyme 2 Rhodocyclus tenuis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
46000
-
isoenzyme 2, gel filtration Rhodocyclus tenuis
57000
-
isoenzyme 1, gel filtration Rhodocyclus tenuis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
O-acetyl-L-Ser + sulfide Rhodocyclus tenuis repressed during growth with sulfide or thiosulfide as sulfur source L-Cys + acetate
-
?

Organism

Organism UniProt Comment Textmining
Rhodoblastus acidophilus
-
-
-
Rhodocyclus purpureus
-
-
-
Rhodocyclus tenuis
-
two isoenzymes, one with additional S-sulfocysteine synthase activity
-
Rhodomicrobium vannielii
-
-
-
Thiocystis violacea
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rhodocyclus tenuis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
130
-
isoenzyme 1 Rhodocyclus tenuis
143
-
isoenzyme 2 Rhodocyclus tenuis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
O-acetyl-L-Ser + sulfide repressed during growth with sulfide or thiosulfide as sulfur source Rhodocyclus tenuis L-Cys + acetate
-
?
O-acetyl-L-serine
-
Rhodocyclus tenuis L-cysteine + acetate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.3 8.2 isoenzyme 1 Rhodocyclus tenuis
7.7
-
-
Rhodocyclus tenuis