Acetaldehid dehidrogenaza (acetilacija)

Acetaldehid dehidrogenaza (acetilacija)
Acetaldehid dehidrogenaza (1NVM)
Identifikatori
EC broj 1.2.1.10
CAS broj 9028-91-5
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB RCSB PDB PDBe PDBj PDBsum

Acetaldehid dehidrogenaza (acetilacija) (EC 1.2.1.10, aldehidna dehidrogenaza (acilacija), ADA, acilirajuća acetaldehidna dehidrogenaza, DmpF) je enzim sa sistematskim imenom acetaldehid:NAD+ oksidoreduktaza (KoA-acetilacija).[1][2][3] Ovaj enzim katalizuje sledeću hemijsku reakciju

acetaldehid + KoA + NAD+ acetil-KoA + NADH + H+

Ovaj enzim takođe deluje, mada sporije, na glikolaldehid, propanal i butanal. Kod Pseudomonas species, on formira deo bifunkcionalanog enzima sa EC 4.1.3.39, 4-hidroksi-2-oksovaleratnom aldolazom. To je finalni enzim u putu meta-cepanja za degradaciju fenola, metilfenola i katehola, koji konvertuje acetaldehid proizveden posredstvom EC 4.1.3.39 u acetil-KoA. NADP+ može da zameni NAD+ ali je brzina reakcije znatno niža.

Reference

  1. ↑ Burton, R.M. and Stadtman, E.R. (1953). „The oxidation of acetaldehyde to acetyl coenzyme A”. J. Biol. Chem. 202: 873-890. PMID 13061511. 
  2. ↑ Smith, L.T. and Kaplan, N.O. (1980). „Purification, properties, and kinetic mechanism of coenzyme A-linked aldehyde dehydrogenase from Clostridium kluyveri”. Arch. Biochem. Biophys. 203: 663-675. PMID 7458347. 
  3. ↑ Powlowski, J., Sahlman, L. and Shingler, V. (1993). „Purification and properties of the physically associated meta-cleavage pathway enzymes 4-hydroxy-2-ketovalerate aldolase and aldehyde dehydrogenase (acylating) from Pseudomonas sp. strain CF600”. J. Bacteriol. 175: 377-385. PMID 8419288. 

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