Tmic
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NameCytochrome P450 2C19
Synonyms
  • (R)-limonene 6-monooxygenase
  • (S)-limonene 6-monooxygenase
  • (S)-limonene 7-monooxygenase
  • 1.14.13.-
  • CYPIIC17
  • CYPIIC19
  • Cytochrome P450-11A
  • Cytochrome P450-254C
  • Mephenytoin 4-hydroxylase
Gene NameCYP2C19
OrganismHuman
Amino acid sequence
>lcl|BSEQ0020694|Cytochrome P450 2C19
MDPFVVLVLCLSCLLLLSIWRQSSGRGKLPPGPTPLPVIGNILQIDIKDVSKSLTNLSKI
YGPVFTLYFGLERMVVLHGYEVVKEALIDLGEEFSGRGHFPLAERANRGFGIVFSNGKRW
KEIRRFSLMTLRNFGMGKRSIEDRVQEEARCLVEELRKTKASPCDPTFILGCAPCNVICS
IIFQKRFDYKDQQFLNLMEKLNENIRIVSTPWIQICNNFPTIIDYFPGTHNKLLKNLAFM
ESDILEKVKEHQESMDINNPRDFIDCFLIKMEKEKQNQQSEFTIENLVITAADLLGAGTE
TTSTTLRYALLLLLKHPEVTAKVQEEIERVVGRNRSPCMQDRGHMPYTDAVVHEVQRYID
LIPTSLPHAVTCDVKFRNYLIPKGTTILTSLTSVLHDNKEFPNPEMFDPRHFLDEGGNFK
KSNYFMPFSAGKRICVGEGLARMELFLFLTFILQNFNLKSLIDPKDLDTTPVVNGFASVP
PFYQLCFIPV
Number of residues490
Molecular Weight55930.545
Theoretical pI7.42
GO Classification
Functions
  • steroid hydroxylase activity
  • iron ion binding
  • (R)-limonene 6-monooxygenase activity
  • heme binding
  • (S)-limonene 6-monooxygenase activity
  • monooxygenase activity
  • (S)-limonene 7-monooxygenase activity
  • oxygen binding
  • 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
  • enzyme binding
  • arachidonic acid epoxygenase activity
  • oxidoreductase activity
Processes
  • steroid metabolic process
  • xenobiotic metabolic process
  • arachidonic acid metabolic process
  • drug metabolic process
  • epoxygenase P450 pathway
  • exogenous drug catabolic process
  • heterocycle metabolic process
  • monoterpenoid metabolic process
  • small molecule metabolic process
  • omega-hydroxylase P450 pathway
  • oxidation-reduction process
Components
  • cytoplasm
  • endoplasmic reticulum membrane
  • intracellular membrane-bounded organelle
General FunctionSteroid hydroxylase activity
Specific FunctionResponsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and imipramine.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein ID181344
UniProtKB IDP33261
UniProtKB Entry NameCP2CJ_HUMAN
Cellular LocationEndoplasmic reticulum membrane
Gene sequence
>lcl|BSEQ0020695|Cytochrome P450 2C19 (CYP2C19)
ATGGATCCTTTTGTGGTCCTTGTGCTCTGTCTCTCATGTTTGCTTCTCCTTTCAATCTGG
AGACAGAGCTCTGGGAGAGGAAAACTCCCTCCTGGCCCCACTCCTCTCCCAGTGATTGGA
AATATCCTACAGATAGATATTAAGGATGTCAGCAAATCCTTAACCAATCTCTCAAAAATC
TATGGCCCTGTGTTCACTCTGTATTTTGGCCTGGAACGCATGGTGGTGCTGCATGGATAT
GAAGTGGTGAAGGAAGCCCTGATTGATCTTGGAGAGGAGTTTTCTGGAAGAGGCCATTTC
CCACTGGCTGAAAGAGCTAACAGAGGATTTGGAATCGTTTTCAGCAATGGAAAGAGATGG
AAGGAGATCCGGCGTTTCTCCCTCATGACGCTGCGGAATTTTGGGATGGGGAAGAGGAGC
ATTGAGGACCGTGTTCAAGAGGAAGCCCGCTGCCTTGTGGAGGAGTTGAGAAAAACCAAG
GCTTCACCCTGTGATCCCACTTTCATCCTGGGCTGTGCTCCCTGCAATGTGATCTGCTCC
ATTATTTTCCAGAAACGTTTCGATTATAAAGATCAGCAATTTCTTAACTTGATGGAAAAA
TTGAATGAAAACATCAGGATTGTAAGCACCCCCTGGATCCAGATATGCAATAATTTTCCC
ACTATCATTGATTATTTCCCGGGAACCCATAACAAATTACTTAAAAACCTTGCTTTTATG
GAAAGTGATATTTTGGAGAAAGTAAAAGAACACCAAGAATCGATGGACATCAACAACCCT
CGGGACTTTATTGATTGCTTCCTGATCAAAATGGAGAAGGAAAAGCAAAACCAACAGTCT
GAATTCACTATTGAAAACTTGGTAATCACTGCAGCTGACTTACTTGGAGCTGGGACAGAG
ACAACAAGCACAACCCTGAGATATGCTCTCCTTCTCCTGCTGAAGCACCCAGAGGTCACA
GCTAAAGTCCAGGAAGAGATTGAACGTGTCATTGGCAGAAACCGGAGCCCCTGCATGCAG
GACAGGGGCCACATGCCCTACACAGATGCTGTGGTGCACGAGGTCCAGAGATACATCGAC
CTCATCCCCACCAGCCTGCCCCATGCAGTGACCTGTGACGTTAAATTCAGAAACTACCTC
ATTCCCAAGGGCACAACCATATTAACTTCCCTCACTTCTGTGCTACATGACAACAAAGAA
TTTCCCAACCCAGAGATGTTTGACCCTCGTCACTTTCTGGATGAAGGTGGAAATTTTAAG
AAAAGTAACTACTTCATGCCTTTCTCAGCAGGAAAACGGATTTGTGTGGGAGAGGGCCTG
GCCCGCATGGAGCTGTTTTTATTCCTGACCTTCATTTTACAGAACTTTAACCTGAAATCT
CTGATTGACCCAAAGGACCTTGACACAACTCCTGTTGTCAATGGATTTGCTTCTGTCCCG
CCCTTCTATCAGCTGTGCTTCATTCCTGTCTGA
GenBank Gene IDM61854
GeneCard IDNot Available
GenAtlas IDNot Available
HGNC IDHGNC:2621
Chromosome Location10
Locus10q24.1-q24.3
References
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  2. Romkes M, Faletto MB, Blaisdell JA, Raucy JL, Goldstein JA: Cloning and expression of complementary DNAs for multiple members of the human cytochrome PH50IIC subfamily. Biochemistry. 1993 Feb 9;32(5):1390. 8095407
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  4. Wrighton SA, Stevens JC, Becker GW, VandenBranden M: Isolation and characterization of human liver cytochrome P450 2C19: correlation between 2C19 and S-mephenytoin 4'-hydroxylation. Arch Biochem Biophys. 1993 Oct;306(1):240-5. 8215410
  5. Miyazawa M, Shindo M, Shimada T: Metabolism of (+)- and (-)-limonenes to respective carveols and perillyl alcohols by CYP2C9 and CYP2C19 in human liver microsomes. Drug Metab Dispos. 2002 May;30(5):602-7. 11950794
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