Protoaphin-aglucone dehydratase (cyclizing)
In enzymology, a protoaphin-aglucone dehydratase (cyclizing) (EC 4.2.1.73) is an enzyme that catalyzes the chemical reaction
- protoaphin aglucone xanthoaphin + H2O
| protoaphin-aglucone dehydratase (cyclizing) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.2.1.73 | ||||||||
| CAS number | 64177-87-3 | ||||||||
| 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 | ||||||||
| |||||||||
Hence, this enzyme has one substrate, protoaphin aglucone, and two products, xanthoaphin and H2O.
This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic name of this enzyme class is protoaphin-aglucone hydro-lyase (cyclizing; xanthoaphin-forming). Other names in common use include protoaphin dehydratase, protoaphin dehydratase (cyclizing), and protoaphin-aglucone hydro-lyase (cyclizing).
References
- Cameron DW, Sawyer WH, Trikojus VM (1977). "Colouring matters of the Aphidoidea. XLII. Purification and properties of the cyclising enzyme [Protoaphin dehydratase (cyclising)] concerned with pigment transformation in the wooly aphid Eriosoma lanigerum Hausmann (Hemiptera: Insecta)". Aust. J. Biol. Sci. 30: 173–181.
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