KEGG ENZYME: 4.2.1.73

ENZYME: 4.2.1.73

Entry

EC 4.2.1.73                 Enzyme

Name

protoaphin-aglucone dehydratase (cyclizing);
protoaphin dehydratase;
protoaphin dehydratase (cyclizing);
protoaphin-aglucone hydro-lyase (cyclizing)

Class

Lyases;
Carbon-oxygen lyases;
Hydro-lyases

Sysname

protoaphin-aglucone hydro-lyase (cyclizing; xanthoaphin-forming)

Reaction(IUBMB)

protoaphin aglucone = xanthoaphin + H2O [RN:R03742]

Reaction(KEGG)

R03742

Substrate

protoaphin aglucone [CPD:C02879]

Product

xanthoaphin [CPD:C01863];
H2O [CPD:C00001]

Comment

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

History

EC 4.2.1.73 created 1978

Reference

Authors

Cameron, D.W., Sawyer, W.H. and Trikojus, V.M.

Title

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).

Journal

Aust J Biol Sci 30:173-181 (1977)

Other DBs

ExplorEnz - The Enzyme Database:

4.2.1.73

IUBMB Enzyme Nomenclature:

4.2.1.73

ExPASy - ENZYME nomenclature database:

4.2.1.73

BRENDA, the Enzyme Database:

4.2.1.73

CAS:	64177-87-3

All links

Chemical substance (3)   
   KEGG COMPOUND (3)   
Chemical reaction (2)   
   KEGG REACTION (1)   
   KEGG RCLASS (1)   
All databases (5)   

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