Biology:Betaine-aldehyde dehydrogenase
| betaine-aldehyde dehydrogenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 Betaine aldehyde dehydrogenase tetramer, Staphylococcus aureus | |||||||||
| Identifiers | |||||||||
| EC number | 1.2.1.8 | ||||||||
| CAS number | 9028-90-4 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a betaine-aldehyde dehydrogenase (EC 1.2.1.8) is an enzyme that catalyzes the chemical reaction
- betaine aldehyde + NAD+ + H2O [math]\displaystyle{ \rightleftharpoons }[/math] betaine + NADH + 2 H+
The 3 substrates of this enzyme are betaine aldehyde, NAD+, and H2O, whereas its 3 products are betaine, NADH, and H+.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is betaine-aldehyde:NAD+ oxidoreductase. Other names in common use include betaine aldehyde oxidase, BADH, betaine aldehyde dehydrogenase, and BetB. This enzyme participates in glycine, serine and threonine metabolism.
Structural studies
(As of 2007), 4 structures have been solved for this class of enzymes, with PDB accession codes 1A4S, 1BPW, 1WNB, and 1WND.
References
- "The oxidation of betaine aldehyde by betaine aldehyde dehydrogenase". J. Biol. Chem. 209 (2): 511–23. 1954. doi:10.1016/S0021-9258(18)65478-X. PMID 13192104.
- "Purification and properties of betaine aldehyde dehydrogenase from Avena sativa". J. Plant Res. 116 (2): 133–40. 2003. doi:10.1007/s10265-003-0077-7. PMID 12736784.
- L; González-Segura, L; Mújica-Jiménez, C; Contreras-Díaz, L (2003). "Ligand-induced conformational changes of betaine aldehyde dehydrogenase from Pseudomonas aeruginosa and Amaranthus hypochondriacus L. leaves affecting the reactivity of the catalytic thiol". Chem. Biol. Interact. 143-144: 129–37. doi:10.1016/S0009-2797(02)00197-7. PMID 12604197.
- Eklund H; El-Ahmad, M; Ramaswamy, S; Hjelmqvist, L; Jörnvall, H; Eklund, H (1998). "Structure of betaine aldehyde dehydrogenase at 2.1 A resolution". Protein Sci. 7 (10): 2106–17. doi:10.1002/pro.5560071007. PMID 9792097.
- Takabe T; Tanaka, Y; Aoki, K; Hibino, T; Jikuya, H; Takano, J; Takabe, T; Takabe, T (2003). "Isolation and functional characterization of N-methyltransferases that catalyze betaine synthesis from glycine in a halotolerant photosynthetic organism Aphanothece halophytica". J. Biol. Chem. 278 (7): 4932–42. doi:10.1074/jbc.M210970200. PMID 12466265.
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