Rhea - reaction knowledgebase

Enzymes

UniProtKB ^help_outline	2 proteins
Enzyme class ^help_outline	EC 1.14.13.38 anhydrotetracycline 6-monooxygenase
GO Molecular Function ^help_outline	GO:0047670 anhydrotetracycline monooxygenase activity

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Name ^help_outline anhydrotetracycline Identifier CHEBI:58032 Charge 0 Formula C22H22N2O7 InChIKey^help_outline CXCVEERYMJZMMM-DOCRCCHOSA-N SMILES^help_outline [H][C@@]12Cc3c(C)c4cccc(O)c4c(O)c3C(=O)[C@]1(O)C(=O)C(C(N)=O)=C([O-])[C@H]2[NH+](C)C 2D coordinates Mol file for the small molecule Search links Involved in 2 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 InChIKey^help_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILES^help_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 InChIKey^help_outline ACFIXJIJDZMPPO-NNYOXOHSSA-J SMILES^help_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 InChIKey^help_outline MYMOFIZGZYHOMD-UHFFFAOYSA-N SMILES^help_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 5a,11a-dehydrotetracycline Identifier CHEBI:57522 Charge 0 Formula C22H22N2O8 InChIKey^help_outline DUAVZCXHIINBQU-ILGMQVKHSA-N SMILES^help_outline [H][C@@]12CC3=C(C(=O)c4c(O)cccc4[C@@]3(C)O)C(=O)[C@]1(O)C(=O)C(C(N)=O)=C([O-])[C@H]2[NH+](C)C 2D coordinates Mol file for the small molecule Search links Involved in 3 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 InChIKey^help_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILES^help_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 InChIKey^help_outline XJLXINKUBYWONI-NNYOXOHSSA-K SMILES^help_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

Cross-references

	RHEA:11976	RHEA:11977	RHEA:11978	RHEA:11979
Reaction direction	undefined	left-to-right	right-to-left	bidirectional
UniProtKB ^help_outline	2 proteins
EC numbers ^help_outline	1.14.13.38
Gene Ontology ^help_outline	GO:0047670
KEGG ^help_outline				R04060
MetaCyc ^help_outline		ANHYDROTETRACYCLINE-MONOOXYGENASE-RXN

Publications

Ablation of the otcC gene encoding a post-polyketide hydroxylase from the oxytetracyline biosynthetic pathway in Streptomyces rimosus results in novel polyketides with altered chain length.

Peric-Concha N., Borovicka B., Long P.F., Hranueli D., Waterman P.G., Hunter I.S.

Oxytetracycline (OTC) is a 19-carbon polyketide antibiotic made by Streptomyces rimosus. The otcC gene encodes an anhydrotetracycline oxygenase that catalyzes a hydroxylation of the anthracycline structure at position C-6 after biosynthesis of the polyketide backbone is completed. A recombinant st ... >> More

Oxytetracycline (OTC) is a 19-carbon polyketide antibiotic made by Streptomyces rimosus. The otcC gene encodes an anhydrotetracycline oxygenase that catalyzes a hydroxylation of the anthracycline structure at position C-6 after biosynthesis of the polyketide backbone is completed. A recombinant strain of S. rimosus that was disrupted in the genomic copy of otcC synthesized a novel C-17 polyketide. This result indicates that the absence of the otcC gene product significantly influences the ability of the OTC "minimal" polyketide synthase to make a polyketide product of the correct chain length. A mutant copy of otcC was made by site-directed mutagenesis of three essential glycine codons located within the putative NADPH-binding domain. The mutant gene was expressed in Escherichia coli, and biochemical analysis confirmed that the gene product was catalytically inactive. When the mutant gene replaced the ablated gene in the chromosome of S. rimosus, the ability to make a 19-carbon backbone was restored, indicating that OtcC is an essential partner in the quaternary structure of the synthase complex. << Less

J. Biol. Chem. 280:37455-37460(2005) [PubMed] [EuropePMC]

RHEA:11976 anhydrotetracycline + H(+) + NADPH + O2 = 5a,11a-dehydrotetracycline + H2O + NADP(+)

Enzymes

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Cross-references

Publications

Ablation of the otcC gene encoding a post-polyketide hydroxylase from the oxytetracyline biosynthetic pathway in Streptomyces rimosus results in novel polyketides with altered chain length.