The Enzyme Database

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EC 1.14.11.20     
Accepted name: deacetoxyvindoline 4-hydroxylase
Reaction: deacetoxyvindoline + 2-oxoglutarate + O2 = deacetylvindoline + succinate + CO2
For diagram of vindoline biosynthesis, click here
Other name(s): desacetoxyvindoline 4-hydroxylase; desacetyoxyvindoline-17-hydroxylase; D17H; desacetoxyvindoline,2-oxoglutarate:oxygen oxidoreductase (4β-hydroxylating)
Systematic name: deacetoxyvindoline,2-oxoglutarate:oxygen oxidoreductase (4β-hydroxylating)
Comments: Requires Fe2+ and ascorbate. Also acts on 3-hydroxy-16-methoxy-2,3-dihydrotabersonine and to a lesser extent on 16-methoxy-2,3-dihydrotabersonine.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 132084-83-4
References:
1.  De Carolis, E., Chan, F., Balsevich, J. and De Luca, V. Isolation and characterization of a 2-oxoglutarate dependent dioxygenase involved in the 2nd-to-last step in vindoline biosynthesis. Plant Physiol. 94 (1990) 1323–1329. [PMID: 16667836]
2.  De Carolis, E. and De Luca, V. Purification, characterization, and kinetic analysis of a 2-oxoglutarate-dependent dioxygenase involved in vindoline biosynthesis from Catharanthus roseus. J. Biol. Chem. 268 (1993) 5504–5511. [PMID: 8449913]
3.  Vazquez-Flota, F.A. and De Luca, V. Developmental and light regulation of desacetoxyvindoline 4-hydroxylase in Catharanthus roseus (L.) G. Don. Evidence of a multilevel regulatory mechanism. Plant Physiol. 117 (1998) 1351–1361. [PMID: 9701591]
[EC 1.14.11.20 created 2002, modified 2005]
 
 


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