Mycothione reductase
In enzymology, a mycothione reductase (EC 1.8.1.15) is an enzyme that catalyzes the chemical reaction
- mycothione + NAD(P)H + H + 2 mycothiol + NADP+
| mycothione reductase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 1.8.1.15 | ||||||||
| 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 M. tuberculosis and other actinomycetes.
The 2 substrates of this enzyme are mycothiol and NADPH, whereas 2 molecules of mycothione and NADP+ are formed as products.
This enzyme belongs to the family of oxidoreductases, specifically those acting on a sulfur group of donors with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is mycothiol:NAD(P)+ oxidoreductase. This enzyme is also called mycothiol-disulfide reductase.
References
- Patel MP, Blanchard JS (1999). "Expression, purification, and characterization of Mycobacterium tuberculosis mycothione reductase". Biochemistry. 38 (36): 11827–33. doi:10.1021/bi991025h. PMID 10512639.
- Patel MP, Blanchard JS (2001). "Mycobacterium tuberculosis mycothione reductase: pH dependence of the kinetic parameters and kinetic isotope effects". Biochemistry. 40 (17): 5119–26. doi:10.1021/bi0029144. PMID 11318633.
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