Literature summary for 1.2.4.2 extracted from

Guest, J.R.; Darlison, M.G.; Spencer, M.E.; Stephens, P.E.
Cloning and sequence analysis of the pyruvate and 2-oxoglutarate dehydrogenase complex genes of Escherichia coli (1984), Biochem. Soc. Trans., 12, 220-223.

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Cloned(Commentary)

Cloned (Comment)	Organism
-	Escherichia coli

Molecular Weight [Da]

Molecular Weight [Da]	Molecular Weight Maximum [Da]	Comment	Organism
104805	-	x * 104805, 2-oxoglutarate dehydrogenase subunit, calculation from nucleotide sequence	Escherichia coli

Organism

Organism	UniProt	Comment	Textmining
Escherichia coli	-	-	-

Reaction

Reaction	Comment	Organism	Reaction ID
2-oxoglutarate + [dihydrolipoyllysine-residue succinyltransferase] lipoyllysine = [dihydrolipoyllysine-residue succinyltransferase] S-succinyldihydrolipoyllysine + CO2	2-oxoglutarate dehydrogenase complex consists of 3 enzymes: E1 (alpha-ketoglutarate dehydrogenase, EC 1.2.4.2), E2 (dihydrolipoyl transsuccinylase, EC 2.3.1.61), E3 (dihydrolipoyl dehydrogenase, EC 1.8.1.4)	Escherichia coli	a
2-oxoglutarate + [dihydrolipoyllysine-residue succinyltransferase] lipoyllysine = [dihydrolipoyllysine-residue succinyltransferase] S-succinyldihydrolipoyllysine + CO2	the enzyme complex catalyzes the reaction : 2-oxoglutarate + CoA + NAD+--> succinyl-CoA + CO2 + NADH, the following partial reactions are catalyzed: 1. HOOC(CH2)2COCOOH + (thiamine diphosphate)-E1--> (HOOC(CH2)2 CHOH-thiamine-diphosphate)-E1 + CO2, 2. (HOOC(CH2)2CH OH-thiamine-diphosphate)-E1 + (LipS2)-E2--> (HOOC(CH)2 CO-(SLipSH))-E2 + (thiamine-diphosphate)-E1, 3. (HOOC(CH2)2CO-(SLipSH))-E2 + HSCoA--> (Lip(SH)2)-E2 + HOOC(CH2)2CO-SCoA, 4. (Lip(SH)2)-E2 + E3-FAD--> (LipS2)-E2 + reduced E3-FAD, 5. reduced E3-FAD + NAD+--> E3-FAD + NADH	Escherichia coli	a

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
2-oxoglutarate + lipoamide	-	Escherichia coli	S-succinyldihydrolipoamide + CO2	-	?

Subunits

Subunits	Comment	Organism
?	x * 104805, 2-oxoglutarate dehydrogenase subunit, calculation from nucleotide sequence	Escherichia coli

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Release 2023.1 (January 2023)