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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Assigned HPA protein class(es) for the encoded protein(s).
Human disease related genes Metabolic proteins Plasma proteins
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
19
Cytoband
q13.2
Chromosome location (bp)
40843541 - 40850447
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Exhibits a high coumarin 7-hydroxylase activity. Can act in the hydroxylation of the anti-cancer drugs cyclophosphamide and ifosphamide. Competent in the metabolic activation of aflatoxin B1. Constitutes the major nicotine C-oxidase. Acts as a 1,4-cineole 2-exo-monooxygenase. Possesses low phenacetin O-deethylation activity....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
Monooxygenase, Oxidoreductase
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Lipid metabolism
Ligand (UniProt)i
Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.
Heme, Iron, Metal-binding, NADP
Gene summary (Entrez)i
Useful information about the gene from Entrez
This gene, CYP2A6, encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the endoplasmic reticulum and its expression is induced by phenobarbital. The enzyme is known to hydroxylate coumarin, and also metabolizes nicotine, aflatoxin B1, nitrosamines, and some pharmaceuticals. Individuals with certain allelic variants are said to have a poor metabolizer phenotype, meaning they do not efficiently metabolize coumarin or nicotine. This gene is part of a large cluster of cytochrome P450 genes from the CYP2A, CYP2B and CYP2F subfamilies on chromosome 19q. The gene was formerly referred to as CYP2A3; however, it has been renamed CYP2A6. [provided by RefSeq, Jul 2008]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Metabolic proteins MEMSAT3 predicted membrane proteins MEMSAT-SVM predicted membrane proteins SPOCTOPUS predicted membrane proteins TMHMM predicted membrane proteins Phobius predicted secreted proteins SPOCTOPUS predicted secreted proteins DeepTMHMM predicted secreted proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Human disease related genes Congenital disorders of metabolism Other congenital disorders of metabolism Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014) DeepTMHMM predicted membrane proteins
Show all
GO:0004497[monooxygenase activity] GO:0005506[iron ion binding] GO:0005737[cytoplasm] GO:0005783[endoplasmic reticulum] GO:0005789[endoplasmic reticulum membrane] GO:0005881[cytoplasmic microtubule] GO:0006082[organic acid metabolic process] GO:0006629[lipid metabolic process] GO:0006805[xenobiotic metabolic process] GO:0008202[steroid metabolic process] GO:0008389[coumarin 7-hydroxylase activity] GO:0008392[arachidonic acid epoxygenase activity] GO:0008395[steroid hydroxylase activity] GO:0009804[coumarin metabolic process] GO:0016020[membrane] GO:0016491[oxidoreductase activity] GO:0016705[oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen] GO:0016712[oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen] GO:0019373[epoxygenase P450 pathway] GO:0019899[enzyme binding] GO:0020037[heme binding] GO:0042178[xenobiotic catabolic process] GO:0043231[intracellular membrane-bounded organelle] GO:0046226[coumarin catabolic process] GO:0046872[metal ion binding]
The Human Protein Atlas project is funded
