IUBMB Enzyme Nomenclature


Accepted name: protoaphin-aglucone dehydratase (cyclizing)

Reaction: protoaphin aglucone = xanthoaphin + H2O

Other name(s): protoaphin dehydratase; protoaphin dehydratase (cyclizing); protoaphin-aglucone hydro-lyase (cyclizing)

Systematic name: protoaphin-aglucone hydro-lyase (cyclizing; xanthoaphin-forming)

Comments: The product is converted non-enzymically to erythroaphin, an aphid pigment.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 64177-87-3


1. Cameron, D.W., Sawyer, W.H. and Trikojus, V.M. 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 (1977) 173-181.

[EC created 1978]

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