Reaction: 2 CoA + NAD(P)+ = CoA-disulfide + NAD(P)H + H+
Other name(s): CoA-disulfide reductase (NADH2); NADH2:CoA-disulfide oxidoreductase; CoA:NAD+ oxidoreductase; CoADR; coenzyme A disulfide reductase
Systematic name: CoA:NAD(P)+ oxidoreductase
Comments: A flavoprotein. Not identical with EC 1.8.1.6 (cystine reductase), EC 1.8.1.7 (glutathione-disulfide reductase) or EC 1.8.1.13 (bis-γ-glutamylcystine reductase). While the enzyme from Staphylococcus aureus has a strong preference for NADPH [3], that from the thermophilic Archaea Pyrococcus horikoshii can use both NADH and NADPH efficiently [4].
Links to other databases: BRENDA, EXPASY, KEGG, CAS registry number: 206770-55-0
References:
1. Setlow, B. and Setlow, P. Levels of acetyl coenzyme A, reduced and oxidized coenzyme A, and coenzyme A in disulfide linkage to protein in dormant and germinated spores and growing and sporulating cells of Bacillus megaterium. J. Bacteriol. 132 (1977) 444-452. [PMID: 410791]
2. delCardayré, S.B., Stock, K.P., Newton, G.L., Fahey, R.C. and Davies, J.E. Coenzyme A disulfide reductase, the primary low molecular weight disulfide reductase from Staphylococcus aureus. Purification and characterization of the native enzyme. J. Biol. Chem. 273 (1998) 5744-5751. [PMID: 9488707]
3. Luba, J., Charrier, V. and Claiborne, A. Coenzyme A-disulfide reductase from Staphylococcus aureus: evidence for asymmetric behavior on interaction with pyridine nucleotides. Biochemistry 38 (1999) 2725-2737. [PMID: 10052943]
4. Harris, D.R., Ward, D.E., Feasel, J.M., Lancaster, K.M., Murphy, R.D., Mallet, T.C. and Crane, E.J., 3rd. Discovery and characterization of a coenzyme A disulfide reductase from Pyrococcus horikoshii. Implications for this disulfide metabolism of anaerobic hyperthermophiles. FEBS J. 272 (2005) 1189-1200. [PMID: 15720393]