Ascopyrone tautomerase

From Wikipedia, the free encyclopedia

In enzymology, an ascopyrone tautomerase (EC 5.3.3.15) is an enzyme that catalyzes the chemical reaction

1,5-anhydro-4-deoxy-D-glycero-hex-3-en-2-ulose 1,5-anhydro-4-deoxy-D-glycero-hex-1-en-3-ulose

Hence, this enzyme has one substrate, 1,5-anhydro-4-deoxy-D-glycero-hex-3-en-2-ulose, and one product, 1,5-anhydro-4-deoxy-D-glycero-hex-1-en-3-ulose.

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases transposing C=C bonds. The systematic name of this enzyme class is 1,5-anhydro-4-deoxy-D-glycero-hex-3-en-2-ulose Delta3-Delta1-isomerase. Other names in common use include ascopyrone isomerase, ascopyrone intramolecular oxidoreductase, 1,5-anhydro-D-glycero-hex-3-en-2-ulose tautomerase, APM tautomerase, ascopyrone P tautomerase, and APTM.

[edit] References

• IUBMB entry for 5.3.3.15
• BRENDA references for 5.3.3.15 (Recommended.)
• PubMed references for 5.3.3.15
• PubMed Central references for 5.3.3.15
• Google Scholar references for 5.3.3.15
• Yu S, Refdahl C, Lundt I (2004). "Enzymatic description of the anhydrofructose pathway of glycogen degradation; I. Identification and purification of anhydrofructose dehydratase, ascopyrone tautomerase and alpha-1,4-glucan lyase in the fungus Anthracobia melaloma". Biochim. Biophys. Acta. 1672: 120–9. PMID 15110094. 
• Yu S, Fiskesund R (2006). "The anhydrofructose pathway and its possible role in stress response and signaling". Biochim. Biophys. Acta. 1760: 1314–22. PMID 16822618. 

[edit] External links

• IUBMB entry for 5.3.3.15

• KEGG entry for 5.3.3.15

• BRENDA entry for 5.3.3.15

• NiceZyme view of 5.3.3.15

• EC2PDB: PDB structures for 5.3.3.15

• PRIAM entry for 5.3.3.15

• PUMA2 entry for 5.3.3.15

• IntEnz: Integrated Enzyme entry for 5.3.3.15

• MetaCyc entry for 5.3.3.15

• Atomic-resolution structures of enzymes belonging to this class