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Information on EC 1.8.1.4 - dihydrolipoyl dehydrogenase and Organism(s) Caenorhabditis elegans

for references in articles please use BRENDA:EC1.8.1.4
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EC Tree
IUBMB Comments
A flavoprotein (FAD). A component of the multienzyme 2-oxo-acid dehydrogenase complexes. In the pyruvate dehydrogenase complex, it binds to the core of EC 2.3.1.12, dihydrolipoyllysine-residue acetyltransferase, and catalyses oxidation of its dihydrolipoyl groups. It plays a similar role in the oxoglutarate and 3-methyl-2-oxobutanoate dehydrogenase complexes. Another substrate is the dihydrolipoyl group in the H-protein of the glycine-cleavage system ({AminoAcid/GlyCleave} for diagram), in which it acts, together with EC 1.4.4.2, glycine dehydrogenase (decarboxylating), and EC 2.1.2.10, aminomethyltransferase, to break down glycine. It can also use free dihydrolipoate, dihydrolipoamide or dihydrolipoyllysine as substrate. This enzyme was first shown to catalyse the oxidation of NADH by methylene blue; this activity was called diaphorase. The glycine cleavage system is composed of four components that only loosely associate: the P protein (EC 1.4.4.2), the T protein (EC 2.1.2.10), the L protein (EC 1.8.1.4) and the lipoyl-bearing H protein .
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Caenorhabditis elegans
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Word Map
The taxonomic range for the selected organisms is: Caenorhabditis elegans
The enzyme appears in selected viruses and cellular organisms
Synonyms
lipoamide dehydrogenase, dihydrolipoamide dehydrogenase, dldh, dihydrolipoyl dehydrogenase, l-protein, nadh diaphorase, e3 component, lipdh, lipoyl dehydrogenase, nicotinamide adenine dinucleotide diaphorase, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
dehydrogenase, lipoamide
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dehydrolipoate dehydrogenase
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DHLDH
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diaphorase
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dihydrolipoic dehydrogenase
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dihydrolipoyl dehydrogenase
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DLDH
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E3
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E3 component of 2-oxoglutarate dehydrogenase complex
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E3 component of acetoin cleaving system
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E3 component of alpha keto acid dehydrogenase complexes
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E3 component of pyruvate and 2-oxoglutarate dehydrogenases complexes
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E3 component of pyruvate complex
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E3 lipoamide dehydrogenase
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Glycine cleavage system L protein
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Glycine oxidation system L-factor
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LDP-Glc
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LDP-Val
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lipoamide dehydrogenase (NADH)
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lipoamide oxidoreductase (NADH)
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lipoamide reductase
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lipoate dehydrogenase
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lipoic acid dehydrogenase
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lipoyl dehydrogenase
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LPD
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LPD-GLC
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LPD-VAL
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NADH:lipoamide oxidoreductase
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ORF-E3
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
oxidation
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redox reaction
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reduction
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SYSTEMATIC NAME
IUBMB Comments
protein-N6-(dihydrolipoyl)lysine:NAD+ oxidoreductase
A flavoprotein (FAD). A component of the multienzyme 2-oxo-acid dehydrogenase complexes. In the pyruvate dehydrogenase complex, it binds to the core of EC 2.3.1.12, dihydrolipoyllysine-residue acetyltransferase, and catalyses oxidation of its dihydrolipoyl groups. It plays a similar role in the oxoglutarate and 3-methyl-2-oxobutanoate dehydrogenase complexes. Another substrate is the dihydrolipoyl group in the H-protein of the glycine-cleavage system ({AminoAcid/GlyCleave} for diagram), in which it acts, together with EC 1.4.4.2, glycine dehydrogenase (decarboxylating), and EC 2.1.2.10, aminomethyltransferase, to break down glycine. It can also use free dihydrolipoate, dihydrolipoamide or dihydrolipoyllysine as substrate. This enzyme was first shown to catalyse the oxidation of NADH by methylene blue; this activity was called diaphorase. The glycine cleavage system is composed of four components that only loosely associate: the P protein (EC 1.4.4.2), the T protein (EC 2.1.2.10), the L protein (EC 1.8.1.4) and the lipoyl-bearing H protein [6].
CAS REGISTRY NUMBER
COMMENTARY hide
9001-18-7
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UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
DLDH_CAEEL
495
0
52633
Swiss-Prot
Mitochondrion (Reliability: 2)