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Information on EC 1.2.4.2 - oxoglutarate dehydrogenase (succinyl-transferring) and Organism(s) Homo sapiens and UniProt Accession Q96HY7

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IUBMB Comments
Contains thiamine diphosphate. It is a component of the multienzyme 2-oxoglutarate dehydrogenase complex, EC 1.2.1.105, in which multiple copies of it are bound to a core of molecules of EC 2.3.1.61, dihydrolipoyllysine-residue succinyltransferase, which also binds multiple copies of EC 1.8.1.4, dihydrolipoyl dehydrogenase. It does not act on free lipoamide or lipoyllysine, but only on the lipoyllysine residue in EC 2.3.1.61.
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This record set is specific for:
Homo sapiens
UNIPROT: Q96HY7
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Word Map
The taxonomic range for the selected organisms is: Homo sapiens
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
Synonyms
alpha-ketoglutarate dehydrogenase, 2-oxoglutarate dehydrogenase, kgdhc, alpha-ketoglutarate dehydrogenase complex, 2-oxoglutarate dehydrogenase complex, oxoglutarate dehydrogenase, kgdh, dhtkd1, ogdhl, ogdhc, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
2-ketoglutarate dehydrogenase
-
-
-
-
2-OGDH
-
-
-
-
2-oxoglutarate dehydrogenase
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-
-
-
2-oxoglutarate dehydrogenase complex
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2-oxoglutarate dehydrogenase complex E1 component
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2-oxoglutarate:lipoate oxidoreductase
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-
-
-
AKGDH
-
-
-
-
alpha-ketoglutarate dehydrogenase
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-
-
-
alpha-ketoglutarate dehydrogenase complex
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-
alpha-ketoglutaric acid dehydrogenase
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-
-
-
alpha-ketoglutaric dehydrogenase
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-
-
-
alpha-KGD
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-
-
-
alpha-oxoglutarate dehydrogenase
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-
-
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dehydrogenase, oxoglutarate
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-
-
-
ELK
-
subunit
KDH
-
alpha-ketoglutarate dehydrogenase is composed of 3 subunits: oxoglutarate dehydrogenase (E1), dihydrolipoamide S-succinyltransferase (E2), and dihydrolipoamide dehydrogenase (E3)
Kdh E1
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-
ketoglutaric dehydrogenase
-
-
-
-
KGDHC
-
-
OGDC
-
-
-
-
oxoglutarate decarboxylase
-
-
-
-
oxoglutarate dehydrogenase
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-
-
-
ThDP-dependent 2-oxoglutarate dehydrogenase
-
-
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
redox reaction
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-
-
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oxidation
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-
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reduction
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-
-
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oxidative decarboxylation
-
-
-
-
SYSTEMATIC NAME
IUBMB Comments
2-oxoglutarate:[dihydrolipoyllysine-residue succinyltransferase]-lipoyllysine 2-oxidoreductase (decarboxylating, acceptor-succinylating)
Contains thiamine diphosphate. It is a component of the multienzyme 2-oxoglutarate dehydrogenase complex, EC 1.2.1.105, in which multiple copies of it are bound to a core of molecules of EC 2.3.1.61, dihydrolipoyllysine-residue succinyltransferase, which also binds multiple copies of EC 1.8.1.4, dihydrolipoyl dehydrogenase. It does not act on free lipoamide or lipoyllysine, but only on the lipoyllysine residue in EC 2.3.1.61.
CAS REGISTRY NUMBER
COMMENTARY hide
9031-02-1
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
2-oxoadipate + 2,6-dichlorophenolindophenol
? + reduced 2,6-dichlorophenolindophenol
show the reaction diagram
-
-
-
?
2-oxoadipate + [dihydrolipoyllysine-residue succinyltransferase] lipoyllysine
[dihydrolipoyllysine-residue succinyltransferase] S-glutaryldihydrolipoyllysine + CO2
show the reaction diagram
2-oxoglutarate + 2,6-dichlorophenolindophenol
? + reduced 2,6-dichlorophenolindophenol
show the reaction diagram
-
-
-
?
2-oxoglutarate + [dihydrolipoyllysine-residue succinyltransferase] lipoyllysine
[dihydrolipoyllysine-residue succinyltransferase] S-succinyldihydrolipoyllysine + CO2
show the reaction diagram
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
2-oxoglutarate + [dihydrolipoyllysine-residue succinyltransferase] lipoyllysine
[dihydrolipoyllysine-residue succinyltransferase] S-succinyldihydrolipoyllysine + CO2
show the reaction diagram
COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
thiamine diphosphate
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Mg2+
-
2 mM used in assay conditions
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
succinylphosphonate
-
-
additional information
-
TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
3.5 - 3.6
2-oxoadipate
4.2 - 21.3
2-oxoglutarate
kcat/KM VALUE [1/mMs-1]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
7 - 12.9
2-oxoadipate
123 - 247
2-oxoglutarate
Ki VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.38
succinylphosphonate
at pH 7.0 and 37°C
-
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
malfunction
-
enzyme knockdown diminishes histone H4K12 succinylation
metabolism
the enzyme creates an additional source of superoxide/hydrogen peroxide from 2-oxoadipate as alternative substrate
physiological function
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
DHTK1_HUMAN
919
0
103077
Swiss-Prot
-
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
nickel-Sepharose column chromatography
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CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
expressed in Escherichia coli BL21(DE3) cells
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REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Nemeria, N.S.; Ambrus, A.; Patel, H.; Gerfen, G.; Adam-Vizi, V.; Tretter, L.; Zhou, J.; Wang, J.; Jordan, F.
Human 2-oxoglutarate dehydrogenase complex E1 component forms a thiamin-derived radical by aerobic oxidation of the enamine intermediate
J. Biol. Chem.
289
29859-29873
2014
Homo sapiens
Manually annotated by BRENDA team
Choi, S.; Pfleger, J.; Jeon, Y.; Yang, Z.; He, M.; Shin, H.; Sayed, D.; Astrof, S.; Abdellatif, M.
Oxoglutarate dehydrogenase and acetyl-CoA acyltransferase 2 selectively associate with H2A.Z-occupied promoters and are required for histone modifications
Biochim. Biophys. Acta
1862
194436
2019
Homo sapiens (Q02218), Homo sapiens, Mus musculus (Q60597), Mus musculus
Manually annotated by BRENDA team
Nemeria, N.S.; Gerfen, G.; Guevara, E.; Nareddy, P.R.; Szostak, M.; Jordan, F.
The human Krebs cycle 2-oxoglutarate dehydrogenase complex creates an additional source of superoxide/hydrogen peroxide from 2-oxoadipate as alternative substrate
Free Radic. Biol. Med.
108
644-654
2017
Homo sapiens, Homo sapiens (Q02218)
Manually annotated by BRENDA team
Nagy, B.; Polak, M.; Ozohanics, O.; Zambo, Z.; Szabo, E.; Hubert, A.; Jordan, F.; Novacek, J.; Adam-Vizi, V.; Ambrus, A.
Structure of the dihydrolipoamide succinyltransferase (E2) component of the human alpha-ketoglutarate dehydrogenase complex (hKGDHc) revealed by cryo-EM and cross-linking mass spectrometry Implications for the overall hKGDHc structure
Biochim. Biophys. Acta Gen. Subj.
1865
129889
2021
Homo sapiens
Manually annotated by BRENDA team
Choi, S.; Pfleger, J.; Jeon, Y.H.; Yang, Z.; He, M.; Shin, H.; Sayed, D.; Astrof, S.; Abdellatif, M.
Oxoglutarate dehydrogenase and acetyl-CoA acyltransferase 2 selectively associate with H2A.Z-occupied promoters and are required for histone modifications
Biochim. Biophys. Acta Gene Regul. Mech.
1862
194436
2019
Homo sapiens, Mus musculus, Rattus norvegicus
Manually annotated by BRENDA team
Burch, J.S.; Marcero, J.R.; Maschek, J.A.; Cox, J.E.; Jackson, L.K.; Medlock, A.E.; Phillips, J.D.; Dailey, H.A.
Glutamine via alpha-ketoglutarate dehydrogenase provides succinyl-CoA for heme synthesis during erythropoiesis
Blood
132
987-998
2018
Homo sapiens, Mus musculus (Q60597)
Manually annotated by BRENDA team
Nemeria, N.S.; Gerfen, G.; Nareddy, P.R.; Yang, L.; Zhang, X.; Szostak, M.; Jordan, F.
The mitochondrial 2-oxoadipate and 2-oxoglutarate dehydrogenase complexes share their E2 and E3 components for their function and both generate reactive oxygen species
Free Radic. Biol. Med.
115
136-145
2018
Homo sapiens, Homo sapiens (Q96HY7 and Q02218)
Manually annotated by BRENDA team