1.2.7.1: pyruvate synthase
This is an abbreviated version!
For detailed information about pyruvate synthase, go to the full flat file.
Word Map on EC 1.2.7.1
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1.2.7.1
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ferredoxins
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acetyl-coa
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clostridium
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hydrogenase
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metronidazole
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hydrogenosomal
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trichomonas
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vaginalis
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thiamin
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histolytica
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entamoeba
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giardia
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desulfovibrio
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pasteurianum
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low-potential
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duodenalis
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trichomoniasis
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2-oxoacids
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flavodoxins
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adp-forming
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nitazoxanide
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formate-lyase
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wood-ljungdahl
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2-oxoacid:ferredoxin
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5-nitroimidazole
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acetogenic
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metronidazole-resistant
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africanus
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tritrichomonas
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hydrogen-producing
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foramen
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amitochondriate
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synthesis
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ferredoxin-type
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indolepyruvate
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biofuel production
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analysis
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biotechnology
- 1.2.7.1
- ferredoxins
- acetyl-coa
- clostridium
- hydrogenase
- metronidazole
- hydrogenosomal
- trichomonas
- vaginalis
- thiamin
- histolytica
- entamoeba
- giardia
- desulfovibrio
- pasteurianum
-
low-potential
- duodenalis
-
trichomoniasis
- 2-oxoacids
- flavodoxins
-
adp-forming
- nitazoxanide
- formate-lyase
-
wood-ljungdahl
-
2-oxoacid:ferredoxin
-
5-nitroimidazole
-
acetogenic
-
metronidazole-resistant
- africanus
-
tritrichomonas
-
hydrogen-producing
-
foramen
-
amitochondriate
- synthesis
-
ferredoxin-type
- indolepyruvate
- biofuel production
- analysis
- biotechnology
Reaction
Synonyms
2-ketobutyrate synthase, 2-oxobutyrate (methylviologen), 2-oxobutyrate synthase (benzylviologen), 2-oxobutyrate-ferredoxin oxidoreductase, alpha-ketobutyrate synthase, alpha-ketobutyrate-ferredoxin oxidoreductase, AP120, Ape2126/2128, bifunctional pyruvate decarboxylase/pyruvate ferredoxin oxidoreductase, EC 1.2.7.2, Moth_0064, NifJ1, OFOR, PFO, PFO A, PFOR, Pfor1, PforA, PFR, PFR1, POR, PorEDABG, pyruvate ferredoxin oxidoreductase, pyruvate-ferredoxin oxidoreductase, pyruvate:Fd oxidoreductase, pyruvate:ferredoxin oxidoreductase, pyruvate:ferredoxin oxidoreductase A, synthase, 2-oxobutyrate, TKV_c04340, Tsac_0046, TTE0445
ECTree
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Inhibitors
Inhibitors on EC 1.2.7.1 - pyruvate synthase
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dioxygen
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the enzyme is inactivated by dioxygen. Less than 50% of the original activity remains when the protein (0.23 mg/ml in 50 mM Tris/HCl pH 7.5) is exposed to air for 80 min at 25°C. Attempts to reactivate the enzyme by anoxic incubation in the presence of 2 mM dithiothreitol fail
Dithionite
with 5 mM dithionite, the half-life is 7 h at 2 °C, with about 90% of the original activity being lost after 24 h
glyoxylate
20 mM, about 40% of the original activity is lost. 2 mM glyoxylate inhibits 6%
NaCl
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the addition of 0.3 M NaCl causes a significant inhibition (up to 80%) of the activity
thiamin diphosphate
CoA binds to domain III and CoA binding and domain III movement drive electron transfer from the TPP, which is coordinated by domains I and IV, into the domain V [4Fe-4S] clusters
[4Fe-4S]-center
CoA binds to domain III and CoA binding and domain III movement drive electron transfer from the TPP, which is coordinated by domains I and IV, into the domain V [4Fe-4S] clusters
1020% inhibition is observed with 50 mM KCl, while with higher concentrations (maximum, 0.6 M), 4665% activation is reached, and further increased concentrations of KCl are inhibitory, enzyme Ape2126/2128
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the enzyme is not inhibited by sodium nitrite (50 mM) or carbon monoxide (100% CO as gas phase)
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additional information
no substrate inhibition with CoA up to 0.1 mM. Slightly or not inhibited at all by glyoxylate, nitrite, CO or potential physiological effectors. Not inhibited by CO. Potential affectors such as ATP, ADP, AMP, cAMP, GTP, GDP, GMP, NAD+, NADH, and glyceraldehyde 3-phosphate, at concentrations of 2 mM, do not affect the activity
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additional information
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not inhibitory: carbon monoxide, sodium cyanide, sodium fluoride, sodium azide
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