Protoaphin-aglucone dehydratase (cyclizing)

protoaphin-aglucone dehydratase (cyclizing)
Identifiers
EC no.	4.2.1.73
CAS no.	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
Search PMC articles PubMed articles NCBI proteins

The enzyme protoaphin-aglucone dehydratase (cyclizing) (EC 4.2.1.73) catalyzes the chemical reaction

protoaphin aglucone ${\displaystyle \rightleftharpoons }$ xanthoaphin + 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.