Enzymes
| UniProtKB help_outline | 1 proteins |
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- Name help_outline aminopyrrolnitrin Identifier CHEBI:85786 (CAS: 16386-65-5) help_outline Charge 0 Formula C10H8Cl2N2 InChIKeyhelp_outline RWAXAHFFXZKMPA-UHFFFAOYSA-N SMILEShelp_outline Nc1c(Cl)cccc1-c1c[nH]cc1Cl 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,431 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline NADPH Identifier CHEBI:57783 (Beilstein: 10411862) help_outline Charge -4 Formula C21H26N7O17P3 InChIKeyhelp_outline ACFIXJIJDZMPPO-NNYOXOHSSA-J SMILEShelp_outline NC(=O)C1=CN(C=CC1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](OP([O-])([O-])=O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,279 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 2,709 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,204 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline NADP+ Identifier CHEBI:58349 Charge -3 Formula C21H25N7O17P3 InChIKeyhelp_outline XJLXINKUBYWONI-NNYOXOHSSA-K SMILEShelp_outline NC(=O)c1ccc[n+](c1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](OP([O-])([O-])=O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,285 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline pyrrolnitrin Identifier CHEBI:32079 (CAS: 1018-71-9) help_outline Charge 0 Formula C10H6Cl2N2O2 InChIKeyhelp_outline QJBZDBLBQWFTPZ-UHFFFAOYSA-N SMILEShelp_outline [O-][N+](=O)c1c(Cl)cccc1-c1c[nH]cc1Cl 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:46136 | RHEA:46137 | RHEA:46138 | RHEA:46139 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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| MetaCyc help_outline |
Publications
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Mechanistic studies on the conversion of arylamines into arylnitro compounds by aminopyrrolnitrin oxygenase: identification of intermediates and kinetic studies.
Lee J., Zhao H.
Angew. Chem. Int. Ed. 45:622-625(2006) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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Reconstitution and characterization of aminopyrrolnitrin oxygenase, a Rieske N-oxygenase that catalyzes unusual arylamine oxidation.
Lee J., Simurdiak M., Zhao H.
Rieske oxygenases catalyze a wide variety of important oxidation reactions. Here we report the characterization of a novel Rieske N-oxygenase, aminopyrrolnitrin oxygenase (PrnD) that catalyzes the unusual oxidation of an arylamine to an arylnitro group. PrnD from Pseudomonas fluorescens Pf5 was fu ... >> More
Rieske oxygenases catalyze a wide variety of important oxidation reactions. Here we report the characterization of a novel Rieske N-oxygenase, aminopyrrolnitrin oxygenase (PrnD) that catalyzes the unusual oxidation of an arylamine to an arylnitro group. PrnD from Pseudomonas fluorescens Pf5 was functionally expressed in Escherichia coli, and the activity of the purified PrnD was reconstituted, which required in vitro assembly of the Rieske iron-sulfur cluster into the protein and the presence of NADPH, FMN, and an E. coli flavin reductase SsuE. Biochemical and bioinformatics studies indicated that the reconstituted PrnD contains a Rieske iron-sulfur cluster and a mononuclear iron center that are formed by residues Cys(69), Cys(88), His(71), His(91), Asp(323), His(186), and His(191), respectively. The enzyme showed a limited range of substrate specificity and catalyzed the conversion of aminopyrrolnitrin into pyrrolnitrin with K(m) = 191 microM and k(cat) = 6.8 min(-1). Isotope labeling experiments with (18)O(2) and H(2)(18)O suggested that the oxygen atoms in the pyrrolnitrin product are derived exclusively from molecular oxygen. In addition, it was found that the oxygenation of the arylamine substrates catalyzed by PrnD occurs at the enzyme active site and does not involve free radical chain reactions. By analogy to known examples of arylamine oxidation, a catalytic mechanism for the bioconversion of amino pyrrolnitrin into pyrrolnitrin was proposed. Our results should facilitate further mechanistic and crystallographic studies of this arylamine oxygenase and may provide a new enzymatic route for the synthesis of aromatic nitro compounds from their corresponding aromatic amines. << Less