Enzymes
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- Name help_outline 2'-deoxyuridine Identifier CHEBI:16450 (CAS: 951-78-0) help_outline Charge 0 Formula C9H12N2O5 InChIKeyhelp_outline MXHRCPNRJAMMIM-SHYZEUOFSA-N SMILEShelp_outline OC[C@H]1O[C@H](C[C@@H]1O)n1ccc(=O)[nH]c1=O 2D coordinates Mol file for the small molecule Search links Involved in 7 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 2-oxoglutarate Identifier CHEBI:16810 (CAS: 64-15-3) help_outline Charge -2 Formula C5H4O5 InChIKeyhelp_outline KPGXRSRHYNQIFN-UHFFFAOYSA-L SMILEShelp_outline [O-]C(=O)CCC(=O)C([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 449 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline O2 Identifier CHEBI:15379 (CAS: 7782-44-7) help_outline Charge 0 Formula O2 InChIKeyhelp_outline MYMOFIZGZYHOMD-UHFFFAOYSA-N SMILEShelp_outline O=O 2D coordinates Mol file for the small molecule Search links Involved in 2,851 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline uridine Identifier CHEBI:16704 (CAS: 58-96-8) help_outline Charge 0 Formula C9H12N2O6 InChIKeyhelp_outline DRTQHJPVMGBUCF-XVFCMESISA-N SMILEShelp_outline OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n1ccc(=O)[nH]c1=O 2D coordinates Mol file for the small molecule Search links Involved in 15 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline succinate Identifier CHEBI:30031 (CAS: 56-14-4) help_outline Charge -2 Formula C4H4O4 InChIKeyhelp_outline KDYFGRWQOYBRFD-UHFFFAOYSA-L SMILEShelp_outline [O-]C(=O)CCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 349 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline CO2 Identifier CHEBI:16526 (CAS: 124-38-9) help_outline Charge 0 Formula CO2 InChIKeyhelp_outline CURLTUGMZLYLDI-UHFFFAOYSA-N SMILEShelp_outline O=C=O 2D coordinates Mol file for the small molecule Search links Involved in 1,058 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:21076 | RHEA:21077 | RHEA:21078 | RHEA:21079 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Thymidine 2'-hydroxylation in Neurospora crassa.
Bankel L., Lindstedt G., Lindstedt S.
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Identification of two alpha-ketoglutarate-dependent dioxygenases in extracts of Rhodotorula glutinis catalyzing deoxyuridine hydroxylation.
Stubbe J.
Attempts to isolate deoxyuridine 2'-hydroxylase from Rhodotorula glutinis by the procedure of Warn-Cramer et al. (Warn-Cramer, B. J., Macrander, L. A., and Abbott, M. T. (1983) J. Biol. Chem. 258, 10551-10557) have led to the identification and partial purification of a newly recognized alpha-keto ... >> More
Attempts to isolate deoxyuridine 2'-hydroxylase from Rhodotorula glutinis by the procedure of Warn-Cramer et al. (Warn-Cramer, B. J., Macrander, L. A., and Abbott, M. T. (1983) J. Biol. Chem. 258, 10551-10557) have led to the identification and partial purification of a newly recognized alpha-ketoglutarate-requiring oxygenase. This activity, designated deoxyuridine (uridine) 1'-hydroxylase, in the presence of iron and ascorbate, catalyzes the conversion of deoxyuridine (uridine), O2, and alpha-ketoglutarate to uracil, deoxyribonolactone (ribonolactone), CO2, and succinate. Incubation of [1'-3H]uridine with this activity results in time-dependent formation of uracil concomitant with production of CO2 and 3H2O. No Vmax/Km isotope effect is observed on this reaction. Uracil production is accompanied by stoichiometric production of ribonolactone identified by NMR spectroscopy. Also reported in this paper is the partial purification and characterization of the alpha-ketoglutarate-requiring enzyme, deoxyuridine 2'-hydroxylase. Incubation of [2'-alpha-3H]deoxyuridine with this activity results in concomitant production of uridine and 3H2O. Incubation with [2'-beta-3H] deoxyuridine results in the production of uridine whose specific activity is identical to that of the starting material. This enzyme catalyzes the conversion of deoxyuridine to uridine with retention of configuration. No isotope effect is observed on this transformation. << Less
J Biol Chem 260:9972-9975(1985) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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Markedly different ascorbate dependencies of the sequential alpha-ketoglutarate dioxygenase reactions catalyzed by an essentially homogeneous thymine 7-hydroxylase from Rhodotorula glutinis.
Warn-Cramer B.J., Macrander L.A., Abbott M.T.
The alpha-ketoglutarate dioxygenase, thymine 7-hydroxylase (EC 1.14.11.6), has been purified from cultures of Rhodotorula glutinis grown with thymine as a nitrogen source. The purification scheme developed yielded essentially homogeneous preparations of the 7-hydroxylase and also purified another ... >> More
The alpha-ketoglutarate dioxygenase, thymine 7-hydroxylase (EC 1.14.11.6), has been purified from cultures of Rhodotorula glutinis grown with thymine as a nitrogen source. The purification scheme developed yielded essentially homogeneous preparations of the 7-hydroxylase and also purified another alpha-ketoglutarate dioxygenase, pyrimidine deoxyribonucleoside 2'-hydroxylase (EC 1.14.11.3). The purity of the 7-hydroxylase was determined with analytical disc gel electrophoresis in which runs were varied with respect to pH, extent of cross-linking, and the presence of sodium dodecyl sulfate-mercaptoethanol. The 7-hydroxylase apparently exists as a monomer since its molecular weight was 42,700 when determined by molecular gel filtration chromatography and was 40,300 when determined by analytical disc gel electrophoresis under denaturing conditions. Gel filtration chromatography under nondenaturing conditions was used to show that the 2'-hydroxylase has a molecular weight of 64,600. The essentially homogeneous preparations of the 7-hydroxylase were shown to catalyze the thymine-, 5-hydroxymethyluracil-, and 5-formyluracil-dependent oxygenations that are coupled to the decarboxylation of alpha-ketoglutarate, as well as a putative uncoupled decarboxylation which is dependent on uracil. Furthermore, these enzyme preparations were used to show that ATP stimulated the 7-hydroxylase reaction in the absence of ascorbate. Even though it is attractive to consider the four pyrimidine-dependent reactions as being catalyzed by the same active site, they were shown to differ markedly in their dependencies on ascorbate or ATP. The effects of ascorbate and ATP on these reactions, and on the 2'-hydroxylase reaction, are discussed in terms of the possible roles of ascorbate and ATP. << Less
J Biol Chem 258:10551-10557(1983) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.