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Results 1 - 6 of 6
EC Number
General Information
Commentary
Reference
evolution
homologue dioxygenase-cytochrome P450 (DOX-CYP) is a fusion protein of the animal heme peroxidase (cyclooxygenase) superfamily. Phylogenetic tree of fungal fusion enzymes with homology to the animal heme peroxidase and CYP superfamilies, overview
malfunction
replacements of Tyr and Cys in the conserved YRWH and FXXGPHXCLG sequences abolished 8R-dioxygenase and hydroperoxide isomerase activities, respectively
metabolism
fungal oxylipins can be formed by two subfamilies of cyclooxygenase-related DOX. The enzymatic activities of the DOX-CYP homologue of Colletotrichum graminicola and the DOX homologue of Fusarium oxysporum. The former oxidizes oleic and linoleic acids in analogy with 7,8-linoleate diol synthases (LDSs), but with the additional biosynthesis of 8,11-dihydroxylinoleic acid. The latter metabolizes fatty acids to hydroperoxides with broad substrate specificity. It oxidizes 20:4n-6 and 18:2n-6 to hydroperoxides with an R configuration at the (n-10) positions, and other n-6 fatty acids in the same way
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homology model of 5,8-LDS, overview
more
homology model of 7,8-LDS, overview
more
Val-328 of 5,8-LDS does not influence the position of oxygenation in contrast to the homologous residues Val-349 of COX-1 and Leu-384 of 10R-dioxygenase. About 675 amino acids are sufficient to support 8-DOX activity
Results 1 - 6 of 6