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P450 superfamily: update on new sequences, gene mapping, accession numbers and nomenclature.
This revision supersedes the four previous updates in which a nomenclature system, based on divergent evolution of the P450 superfamily has been described and is similar to that proposed in the previous updates.
Nomenclature update for the mammalian UDP glycosyltransferase (UGT) gene superfamily.
The UGT nomenclature is updated to include new genes identified in the human, mouse and rat genomes and in other mammalian species to prevent confusion when the same gene is given different names.
The UDP glycosyltransferase gene superfamily: recommended nomenclature update based on evolutionary divergence.
This review represents an update of the nomenclature system for the UDP glucuronosyltransferase gene superfamily, which is based on divergent evolution and is anticipated that this UGT gene nomenClature system will require updating on a regular basis.
Role of Aryl Hydrocarbon Receptor-mediated Induction of the CYP1 Enzymes in Environmental Toxicity and Cancer*
- D. Nebert, T. Dalton, A. Okey, F. Gonzalez
- Biology, ChemistryJournal of Biological Chemistry
- 4 June 2004
Differences in AHR affinity between inbred mouse strains reflect variations in CYP1 inducibility and clearly have been shown to be associated with differences in risk of toxicity or cancer caused by PAHs and arylamines.
Clinical importance of the cytochromes P450
Role of the aromatic hydrocarbon receptor and [Ah] gene battery in the oxidative stress response, cell cycle control, and apoptosis.
Comparison of cytochrome P450 (CYP) genes from the mouse and human genomes, including nomenclature recommendations for genes, pseudogenes and alternative-splice variants.
- D. Nelson, D. Zeldin, S. Hoffman, L. Maltais, H. Wain, D. Nebert
- BiologyPharmacogenetics (London)
The cytochrome P450 (CYP) gene superfamily is summarized and complete identification of all pseudogene sequences is likely to be clinically important, because some of these highly similar exons can interfere with PCR-based genotyping assays.
The role of cytochrome P450 enzymes in endogenous signalling pathways and environmental carcinogenesis
A two-tiered system to predict an overall inter-individual risk of tumorigenesis based on DNA variants in certain 'early defence' CYP genes, combined with polymorphisms in various downstream target genes is suggested.
P450 genes: structure, evolution, and regulation.
Oral exposure to benzo[a]pyrene in the mouse: detoxication by inducible cytochrome P450 is more important than metabolic activation.
The present data indicate that, in the intact animal, inducible CYP1A1 is extremely important in detoxication and protection against oral BaP toxicity.