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EC 1.21.4.4 Details
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EC number
1.21.4.4
Accepted name
betaine reductase
Reaction
acetyl phosphate + trimethylamine + thioredoxin disulfide + H2O = betaine + phosphate + thioredoxin
Other name(s)
acetyl-phosphate trimethylamine:thioredoxin disulfide oxidoreductase (N,N,N-trimethylglycine-forming)
Systematic name
acetyl-phosphate trimethylamine:thioredoxin disulfide oxidoreductase (betaine-forming)
CAS registry number
125752-87-6
Comment
The reaction is observed only in the direction of betaine reduction. The enzyme from Eubacterium acidaminophilum consists of subunits A, B and C. Subunit B contains selenocysteine and a pyruvoyl group, and is responsible for betaine binding and trimethylamine release. Subunit A, which also contains selenocysteine, is reduced by thioredoxin, and is needed to convert the carboxymethyl group into a ketene equivalent, in turn used by subunit C to produce acetyl phosphate. Only subunit B distinguishes this enzyme from EC 1.21.4.2 (glycine reductase) and EC 1.21.4.3 (sarcosine reductase).
History
created 2003, modified 2010
EC Browser
1 Oxidoreductases (9651 organisms) download 3869963 sequences with EC number 1 in fasta format download 3869963 sequences with EC number 1 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 1) as tabstop separated file
1.21.1. undefined (18 organisms)
2 Transferases (6622 organisms) download 6047191 sequences with EC number 2 in fasta format download 6047191 sequences with EC number 2 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 2) as tabstop separated file
3 Hydrolases (10604 organisms) download 3219244 sequences with EC number 3 in fasta format download 3219244 sequences with EC number 3 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 3) as tabstop separated file
4 Lyases (5111 organisms) download 1852335 sequences with EC number 4 in fasta format download 1852335 sequences with EC number 4 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 4) as tabstop separated file
5 Isomerases (2083 organisms) download 1146532 sequences with EC number 5 in fasta format download 1146532 sequences with EC number 5 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 5) as tabstop separated file
6 Ligases (1547 organisms) download 1713431 sequences with EC number 6 in fasta format download 1713431 sequences with EC number 6 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 6) as tabstop separated file
7 Translocases (966 organisms) download 592568 sequences with EC number 7 in fasta format download 592568 sequences with EC number 7 as tabstop The data in BRENDA allow the calculation or simulation of metabolic pathways by extracting the information of substrate/product chains and the corresponding kinetic data of the preceding and following enzymes in the Boehringer and KEGG metabolism (with the risk of including ?pathways? with non-natural compounds). version Download 2822 PDB numbers (EC 7) as tabstop separated file