1. Carveol

1. Cytochrome P450 2C9
2. Cytochrome P450 2C19

1. (R)-limonene 6-monooxygenase
2. (S)-limonene 6-monooxygenase
3. (S)-limonene 7-monooxygenase
4. CYPIIC9
5. Cytochrome P-450MP
6. Cytochrome P450 MP-4
7. Cytochrome P450 MP-8
8. Cytochrome P450 PB-1
9. S-mephenytoin 4-hydroxylase

MDSLVVLVLCLSCLLLLSLWRQSSGRGKLPPGPTPLPVIGNILQIGIKDISKSLTNLSKV
YGPVFTLYFGLKPIVVLHGYEAVKEALIDLGEEFSGRGIFPLAERANRGFGIVFSNGKKW
KEIRRFSLMTLRNFGMGKRSIEDRVQEEARCLVEELRKTKASPCDPTFILGCAPCNVICS
IIFHKRFDYKDQQFLNLMEKLNENIKILSSPWIQICNNFSPIIDYFPGTHNKLLKNVAFM
KSYILEKVKEHQESMDMNNPQDFIDCFLMKMEKEKHNQPSEFTIESLENTAVDLFGAGTE
TTSTTLRYALLLLLKHPEVTAKVQEEIERVIGRNRSPCMQDRSHMPYTDAVVHEVQRYID
LLPTSLPHAVTCDIKFRNYLIPKGTTILISLTSVLHDNKEFPNPEMFDPHHFLDEGGNFK
KSKYFMPFSAGKRICVGEALAGMELFLFLTSILQNFNLKSLVDPKNLDTTPVVNGFASVP
PFYQLCFIPV

• Limonene and pinene degradation (map00903 )
• Monoterpenoid biosynthesis (map00902 )

• (R)-limonene + NADPH + H+ + O2 = (+)-trans-carveol + NADP+ + H2O [RN:R06119]

• p450 (PF00067 )

• None

• None

ATGGATTCTCTTGTGGTCCTTGTGCTCTGTCTCTCATGTTTGCTTCTCCTTTCACTCTGG
AGACAGAGCTCTGGGAGAGGAAAACTCCCTCCTGGCCCCACTCCTCTCCCAGTGATTGGA
AATATCCTACAGATAGGTATTAAGGACATCAGCAAATCCTTAACCAATCTCTCAAAGGTC
TATGGCCCTGTGTTCACTCTGTATTTTGGCCTGAAACCCATAGTGGTGCTGCATGGATAT
GAAGCAGTGAAGGAAGCCCTGATTGATCTTGGAGAGGAGTTTTCTGGAAGAGGCATTTTC
CCACTGGCTGAAAGAGCTAACAGAGGATTTGGAATTGTTTTCAGCAATGGAAAGAAATGG
AAGGAGATCCGGCGTTTCTCCCTCATGACGCTGCGGAATTTTGGGATGGGGAAGAGGAGC
ATTGAGGACCGTGTTCAAGAGGAAGCCCGCTGCCTTGTGGAGGAGTTGAGAAAAACCAAG
GCCTCACCCTGTGATCCCACTTTCATCCTGGGCTGTGCTCCCTGCAATGTGATCTGCTCC
ATTATTTTCCATAAACGTTTTGATTATAAAGATCAGCAATTTCTTAACTTAATGGAAAAG
TTGAATGAAAACATCAAGATTTTGAGCAGCCCCTGGATCCAGATCTGCAATAATTTTTCT
CCTATCATTGATTACTTCCCGGGAACTCACAACAAATTACTTAAAAACGTTGCTTTTATG
AAAAGTTATATTTTGGAAAAAGTAAAAGAACACCAAGAATCAATGGACATGAACAACCCT
CAGGACTTTATTGATTGCTTCCTGATGAAAATGGAGAAGGAAAAGCACAACCAACCATCT
GAATTTACTATTGAAAGCTTGGAAAACACTGCAGTTGACTTGTTTGGAGCTGGGACAGAG
ACGACAAGCACAACCCTGAGATATGCTCTCCTTCTCCTGCTGAAGCACCCAGAGGTCACA
GCTAAAGTCCAGGAAGAGATTGAACGTGTGATTGGCAGAAACCGGAGCCCCTGCATGCAA
GACAGGAGCCACATGCCCTACACAGATGCTGTGGTGCACGAGGTCCAGAGATACATTGAC
CTTCTCCCCACCAGCCTGCCCCATGCAGTGACCTGTGACATTAAATTCAGAAACTATCTC
ATTCCCAAGGGCACAACCATATTAATTTCCCTGACTTCTGTGCTACATGACAACAAAGAA
TTTCCCAACCCAGAGATGTTTGACCCTCATCACTTTCTGGATGAAGGTGGCAATTTTAAG
AAAAGTAAATACTTCATGCCTTTCTCAGCAGGAAAACGGATTTGTGTGGGAGAAGCCCTG
GCCGGCATGGAGCTGTTTTTATTCCTGACCTCCATTTTACAGAACTTTAACCTGAAATCT
CTGGTTGACCCAAAGAACCTTGACACCACTCCAGTTGTCAATGGATTTGCCTCTGTGCCG
CCCTTCTACCAGCTGTGCTTCATTCCTGTCTGA

1. Meehan RR, Gosden JR, Rout D, Hastie ND, Friedberg T, Adesnik M, Buckland R, van Heyningen V, Fletcher J, Spurr NK, et al.: Human cytochrome P-450 PB-1: a multigene family involved in mephenytoin and steroid oxidations that maps to chromosome 10. Am J Hum Genet. 1988 Jan;42(1):26-37. [PubMed ]
2. Kimura S, Pastewka J, Gelboin HV, Gonzalez FJ: cDNA and amino acid sequences of two members of the human P450IIC gene subfamily. Nucleic Acids Res. 1987 Dec 10;15(23):10053-4. [PubMed ]
3. Yasumori T, Kawano S, Nagata K, Shimada M, Yamazoe Y, Kato R: Nucleotide sequence of a human liver cytochrome P-450 related to the rat male specific form. J Biochem (Tokyo). 1987 Nov;102(5):1075-82. [PubMed ]
4. Umbenhauer DR, Martin MV, Lloyd RS, Guengerich FP: Cloning and sequence determination of a complementary DNA related to human liver microsomal cytochrome P-450 S-mephenytoin 4-hydroxylase. Biochemistry. 1987 Feb 24;26(4):1094-9. [PubMed ]
5. Ged C, Umbenhauer DR, Bellew TM, Bork RW, Srivastava PK, Shinriki N, Lloyd RS, Guengerich FP: Characterization of cDNAs, mRNAs, and proteins related to human liver microsomal cytochrome P-450 (S)-mephenytoin 4'-hydroxylase. Biochemistry. 1988 Sep 6;27(18):6929-40. [PubMed ]
6. Ohgiya S, Komori M, Ohi H, Shiramatsu K, Shinriki N, Kamataki T: Six-base deletion occurring in messages of human cytochrome P-450 in the CYP2C subfamily results in reduction of tolbutamide hydroxylase activity. Biochem Int. 1992 Sep;27(6):1073-81. [PubMed ]
7. Shimada T, Misono KS, Guengerich FP: Human liver microsomal cytochrome P-450 mephenytoin 4-hydroxylase, a prototype of genetic polymorphism in oxidative drug metabolism. Purification and characterization of two similar forms involved in the reaction. J Biol Chem. 1986 Jan 15;261(2):909-21. [PubMed ]
8. Komori M, Hashizume T, Ohi H, Miura T, Kitada M, Nagashima K, Kamataki T: Cytochrome P-450 in human liver microsomes: high-performance liquid chromatographic isolation of three forms and their characterization. J Biochem. 1988 Dec;104(6):912-6. [PubMed ]
9. Srivastava PK, Yun CH, Beaune PH, Ged C, Guengerich FP: Separation of human liver microsomal tolbutamide hydroxylase and (S)-mephenytoin 4'-hydroxylase cytochrome P-450 enzymes. Mol Pharmacol. 1991 Jul;40(1):69-79. [PubMed ]
10. Haining RL, Hunter AP, Veronese ME, Trager WF, Rettie AE: Allelic variants of human cytochrome P450 2C9: baculovirus-mediated expression, purification, structural characterization, substrate stereoselectivity, and prochiral selectivity of the wild-type and I359L mutant forms. Arch Biochem Biophys. 1996 Sep 15;333(2):447-58. [PubMed ]
11. Sandhu P, Baba T, Guengerich FP: Expression of modified cytochrome P450 2C10 (2C9) in Escherichia coli, purification, and reconstitution of catalytic activity. Arch Biochem Biophys. 1993 Nov 1;306(2):443-50. [PubMed ]
12. 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. [PubMed ]
13. Williams PA, Cosme J, Ward A, Angove HC, Matak Vinkovic D, Jhoti H: Crystal structure of human cytochrome P450 2C9 with bound warfarin. Nature. 2003 Jul 24;424(6947):464-8. Epub 2003 Jul 13. [PubMed ]
14. Stubbins MJ, Harries LW, Smith G, Tarbit MH, Wolf CR: Genetic analysis of the human cytochrome P450 CYP2C9 locus. Pharmacogenetics. 1996 Oct;6(5):429-39. [PubMed ]
15. Bhasker CR, Miners JO, Coulter S, Birkett DJ: Allelic and functional variability of cytochrome P4502C9. Pharmacogenetics. 1997 Feb;7(1):51-8. [PubMed ]
16. Imai J, Ieiri I, Mamiya K, Miyahara S, Furuumi H, Nanba E, Yamane M, Fukumaki Y, Ninomiya H, Tashiro N, Otsubo K, Higuchi S: Polymorphism of the cytochrome P450 (CYP) 2C9 gene in Japanese epileptic patients: genetic analysis of the CYP2C9 locus. Pharmacogenetics. 2000 Feb;10(1):85-9. [PubMed ]
17. Dickmann LJ, Rettie AE, Kneller MB, Kim RB, Wood AJ, Stein CM, Wilkinson GR, Schwarz UI: Identification and functional characterization of a new CYP2C9 variant (CYP2C9*5) expressed among African Americans. Mol Pharmacol. 2001 Aug;60(2):382-7. [PubMed ]
18. Higashi MK, Veenstra DL, Kondo LM, Wittkowsky AK, Srinouanprachanh SL, Farin FM, Rettie AE: Association between CYP2C9 genetic variants and anticoagulation-related outcomes during warfarin therapy. JAMA. 2002 Apr 3;287(13):1690-8. [PubMed ]
19. Solus JF, Arietta BJ, Harris JR, Sexton DP, Steward JQ, McMunn C, Ihrie P, Mehall JM, Edwards TL, Dawson EP: Genetic variation in eleven phase I drug metabolism genes in an ethnically diverse population. Pharmacogenomics. 2004 Oct;5(7):895-931. [PubMed ]

1. (R)-limonene 6-monooxygenase
2. (S)-limonene 6-monooxygenase
3. (S)-limonene 7-monooxygenase
4. CYPIIC17
5. CYPIIC19
6. Cytochrome P450-11A
7. Cytochrome P450-254C
8. Mephenytoin 4-hydroxylase

MDPFVVLVLCLSCLLLLSIWRQSSGRGKLPPGPTPLPVIGNILQIDIKDVSKSLTNLSKI
YGPVFTLYFGLERMVVLHGYEVVKEALIDLGEEFSGRGHFPLAERANRGFGIVFSNGKRW
KEIRRFSLMTLRNFGMGKRSIEDRVQEEARCLVEELRKTKASPCDPTFILGCAPCNVICS
IIFQKRFDYKDQQFLNLMEKLNENIRIVSTPWIQICNNFPTIIDYFPGTHNKLLKNLAFM
ESDILEKVKEHQESMDINNPRDFIDCFLIKMEKEKQNQQSEFTIENLVITAADLLGAGTE
TTSTTLRYALLLLLKHPEVTAKVQEEIERVVGRNRSPCMQDRGHMPYTDAVVHEVQRYID
LIPTSLPHAVTCDVKFRNYLIPKGTTILTSLTSVLHDNKEFPNPEMFDPRHFLDEGGNFK
KSNYFMPFSAGKRICVGEGLARMELFLFLTFILQNFNLKSLIDPKDLDTTPVVNGFASVP
PFYQLCFIPV

• Limonene and pinene degradation (map00903 )
• Monoterpenoid biosynthesis (map00902 )

• (R)-limonene + NADPH + H+ + O2 = (+)-trans-carveol + NADP+ + H2O [RN:R06119]

• p450 (PF00067 )

• None

• None

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

1. Romkes M, Faletto MB, Blaisdell JA, Raucy JL, Goldstein JA: Cloning and expression of complementary DNAs for multiple members of the human cytochrome P450IIC subfamily. Biochemistry. 1991 Apr 2;30(13):3247-55. [PubMed ]
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. [PubMed ]
3. Deloukas P, Earthrowl ME, Grafham DV, Rubenfield M, French L, Steward CA, Sims SK, Jones MC, Searle S, Scott C, Howe K, Hunt SE, Andrews TD, Gilbert JG, Swarbreck D, Ashurst JL, Taylor A, Battles J, Bird CP, Ainscough R, Almeida JP, Ashwell RI, Ambrose KD, Babbage AK, Bagguley CL, Bailey J, Banerjee R, Bates K, Beasley H, Bray-Allen S, Brown AJ, Brown JY, Burford DC, Burrill W, Burton J, Cahill P, Camire D, Carter NP, Chapman JC, Clark SY, Clarke G, Clee CM, Clegg S, Corby N, Coulson A, Dhami P, Dutta I, Dunn M, Faulkner L, Frankish A, Frankland JA, Garner P, Garnett J, Gribble S, Griffiths C, Grocock R, Gustafson E, Hammond S, Harley JL, Hart E, Heath PD, Ho TP, Hopkins B, Horne J, Howden PJ, Huckle E, Hynds C, Johnson C, Johnson D, Kana A, Kay M, Kimberley AM, Kershaw JK, Kokkinaki M, Laird GK, Lawlor S, Lee HM, Leongamornlert DA, Laird G, Lloyd C, Lloyd DM, Loveland J, Lovell J, McLaren S, McLay KE, McMurray A, Mashreghi-Mohammadi M, Matthews L, Milne S, Nickerson T, Nguyen M, Overton-Larty E, Palmer SA, Pearce AV, Peck AI, Pelan S, Phillimore B, Porter K, Rice CM, Rogosin A, Ross MT, Sarafidou T, Sehra HK, Shownkeen R, Skuce CD, Smith M, Standring L, Sycamore N, Tester J, Thorpe A, Torcasso W, Tracey A, Tromans A, Tsolas J, Wall M, Walsh J, Wang H, Weinstock K, West AP, Willey DL, Whitehead SL, Wilming L, Wray PW, Young L, Chen Y, Lovering RC, Moschonas NK, Siebert R, Fechtel K, Bentley D, Durbin R, Hubbard T, Doucette-Stamm L, Beck S, Smith DR, Rogers J: The DNA sequence and comparative analysis of human chromosome 10. Nature. 2004 May 27;429(6990):375-81. [PubMed ]
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. [PubMed ]
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. [PubMed ]
6. de Morais SM, Wilkinson GR, Blaisdell J, Nakamura K, Meyer UA, Goldstein JA: The major genetic defect responsible for the polymorphism of S-mephenytoin metabolism in humans. J Biol Chem. 1994 Jun 3;269(22):15419-22. [PubMed ]
7. De Morais SM, Wilkinson GR, Blaisdell J, Meyer UA, Nakamura K, Goldstein JA: Identification of a new genetic defect responsible for the polymorphism of (S)-mephenytoin metabolism in Japanese. Mol Pharmacol. 1994 Oct;46(4):594-8. [PubMed ]
8. Xiao ZS, Goldstein JA, Xie HG, Blaisdell J, Wang W, Jiang CH, Yan FX, He N, Huang SL, Xu ZH, Zhou HH: Differences in the incidence of the CYP2C19 polymorphism affecting the S-mephenytoin phenotype in Chinese Han and Bai populations and identification of a new rare CYP2C19 mutant allele. J Pharmacol Exp Ther. 1997 Apr;281(1):604-9. [PubMed ]
9. Ibeanu GC, Goldstein JA, Meyer U, Benhamou S, Bouchardy C, Dayer P, Ghanayem BI, Blaisdell J: Identification of new human CYP2C19 alleles (CYP2C19*6 and CYP2C19*2B) in a Caucasian poor metabolizer of mephenytoin. J Pharmacol Exp Ther. 1998 Sep;286(3):1490-5. [PubMed ]
10. Ibeanu GC, Blaisdell J, Ghanayem BI, Beyeler C, Benhamou S, Bouchardy C, Wilkinson GR, Dayer P, Daly AK, Goldstein JA: An additional defective allele, CYP2C19*5, contributes to the S-mephenytoin poor metabolizer phenotype in Caucasians. Pharmacogenetics. 1998 Apr;8(2):129-35. [PubMed ]
11. Ibeanu GC, Blaisdell J, Ferguson RJ, Ghanayem BI, Brosen K, Benhamou S, Bouchardy C, Wilkinson GR, Dayer P, Goldstein JA: A novel transversion in the intron 5 donor splice junction of CYP2C19 and a sequence polymorphism in exon 3 contribute to the poor metabolizer phenotype for the anticonvulsant drug S-mephenytoin. J Pharmacol Exp Ther. 1999 Aug;290(2):635-40. [PubMed ]
12. Blaisdell J, Mohrenweiser H, Jackson J, Ferguson S, Coulter S, Chanas B, Xi T, Ghanayem B, Goldstein JA: Identification and functional characterization of new potentially defective alleles of human CYP2C19. Pharmacogenetics. 2002 Dec;12(9):703-11. [PubMed ]
13. Morita J, Kobayashi K, Wanibuchi A, Kimura M, Irie S, Ishizaki T, Chiba K: A novel single nucleotide polymorphism (SNP) of the CYP2C19 gene in a Japanese subject with lowered capacity of mephobarbital 4'-hydroxylation. Drug Metab Pharmacokinet. 2004 Jun;19(3):236-8. [PubMed ]
14. Solus JF, Arietta BJ, Harris JR, Sexton DP, Steward JQ, McMunn C, Ihrie P, Mehall JM, Edwards TL, Dawson EP: Genetic variation in eleven phase I drug metabolism genes in an ethnically diverse population. Pharmacogenomics. 2004 Oct;5(7):895-931. [PubMed ]
15. Fukushima-Uesaka H, Saito Y, Maekawa K, Ozawa S, Hasegawa R, Kajio H, Kuzuya N, Yasuda K, Kawamoto M, Kamatani N, Suzuki K, Yanagawa T, Tohkin M, Sawada J: Genetic variations and haplotypes of CYP2C19 in a Japanese population. Drug Metab Pharmacokinet. 2005 Aug;20(4):300-7. [PubMed ]