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Pathway Description
Doxepin Metabolism Pathway
Homo sapiens
Drug Metabolism Pathway
Created: 2013-09-11
Last Updated: 2019-08-29
Doxepin is a tricyclic antidepressant (TCA) that can be used for treating major depressive disorder and sleep maintenance. Doxepin is metabolized by cytochrome P450 2C19, 1A2, 2C9, 3A4 to form N-desmethyldoxepin, and form (E)-2-hydroxydoxepin by solely cytochrome P450 2D6 in ER of liver.
References
Doxepin Pathway References
[PharmgKB](http://www.pharmgkb.org/pathway/PA165981686)
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Pubmed: 2574001
Gaedigk A, Bhathena A, Ndjountche L, Pearce RE, Abdel-Rahman SM, Alander SW, Bradford LD, Rogan PK, Leeder JS: Identification and characterization of novel sequence variations in the cytochrome P4502D6 (CYP2D6) gene in African Americans. Pharmacogenomics J. 2005;5(3):173-82. doi: 10.1038/sj.tpj.6500305.
Pubmed: 15768052
Sridar C, Snider NT, Hollenberg PF: Anandamide oxidation by wild-type and polymorphically expressed CYP2B6 and CYP2D6. Drug Metab Dispos. 2011 May;39(5):782-8. doi: 10.1124/dmd.110.036707. Epub 2011 Feb 2.
Pubmed: 21289075
Ikeya K, Jaiswal AK, Owens RA, Jones JE, Nebert DW, Kimura S: Human CYP1A2: sequence, gene structure, comparison with the mouse and rat orthologous gene, and differences in liver 1A2 mRNA expression. Mol Endocrinol. 1989 Sep;3(9):1399-408. doi: 10.1210/mend-3-9-1399.
Pubmed: 2575218
Jaiswal AK, Nebert DW, Gonzalez FJ: Human P3(450): cDNA and complete amino acid sequence. Nucleic Acids Res. 1986 Aug 26;14(16):6773-4. doi: 10.1093/nar/14.16.6773.
Pubmed: 3755823
Quattrochi LC, Pendurthi UR, Okino ST, Potenza C, Tukey RH: Human cytochrome P-450 4 mRNA and gene: part of a multigene family that contains Alu sequences in its mRNA. Proc Natl Acad Sci U S A. 1986 Sep;83(18):6731-5. doi: 10.1073/pnas.83.18.6731.
Pubmed: 3462722
Hsieh KP, Lin YY, Cheng CL, Lai ML, Lin MS, Siest JP, Huang JD: Novel mutations of CYP3A4 in Chinese. Drug Metab Dispos. 2001 Mar;29(3):268-73.
Pubmed: 11181494
Molowa DT, Schuetz EG, Wrighton SA, Watkins PB, Kremers P, Mendez-Picon G, Parker GA, Guzelian PS: Complete cDNA sequence of a cytochrome P-450 inducible by glucocorticoids in human liver. Proc Natl Acad Sci U S A. 1986 Jul;83(14):5311-5. doi: 10.1073/pnas.83.14.5311.
Pubmed: 3460094
Gonzalez FJ, Schmid BJ, Umeno M, Mcbride OW, Hardwick JP, Meyer UA, Gelboin HV, Idle JR: Human P450PCN1: sequence, chromosome localization, and direct evidence through cDNA expression that P450PCN1 is nifedipine oxidase. DNA. 1988 Mar;7(2):79-86. doi: 10.1089/dna.1988.7.79.
Pubmed: 3267210
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. doi: 10.1124/dmd.30.5.602.
Pubmed: 11950794
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: 9732415
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: 10022751
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: 2827463
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. doi: 10.1093/nar/15.23.10053.
Pubmed: 3697070
Ota T, Suzuki Y, Nishikawa T, Otsuki T, Sugiyama T, Irie R, Wakamatsu A, Hayashi K, Sato H, Nagai K, Kimura K, Makita H, Sekine M, Obayashi M, Nishi T, Shibahara T, Tanaka T, Ishii S, Yamamoto J, Saito K, Kawai Y, Isono Y, Nakamura Y, Nagahari K, Murakami K, Yasuda T, Iwayanagi T, Wagatsuma M, Shiratori A, Sudo H, Hosoiri T, Kaku Y, Kodaira H, Kondo H, Sugawara M, Takahashi M, Kanda K, Yokoi T, Furuya T, Kikkawa E, Omura Y, Abe K, Kamihara K, Katsuta N, Sato K, Tanikawa M, Yamazaki M, Ninomiya K, Ishibashi T, Yamashita H, Murakawa K, Fujimori K, Tanai H, Kimata M, Watanabe M, Hiraoka S, Chiba Y, Ishida S, Ono Y, Takiguchi S, Watanabe S, Yosida M, Hotuta T, Kusano J, Kanehori K, Takahashi-Fujii A, Hara H, Tanase TO, Nomura Y, Togiya S, Komai F, Hara R, Takeuchi K, Arita M, Imose N, Musashino K, Yuuki H, Oshima A, Sasaki N, Aotsuka S, Yoshikawa Y, Matsunawa H, Ichihara T, Shiohata N, Sano S, Moriya S, Momiyama H, Satoh N, Takami S, Terashima Y, Suzuki O, Nakagawa S, Senoh A, Mizoguchi H, Goto Y, Shimizu F, Wakebe H, Hishigaki H, Watanabe T, Sugiyama A, Takemoto M, Kawakami B, Yamazaki M, Watanabe K, Kumagai A, Itakura S, Fukuzumi Y, Fujimori Y, Komiyama M, Tashiro H, Tanigami A, Fujiwara T, Ono T, Yamada K, Fujii Y, Ozaki K, Hirao M, Ohmori Y, Kawabata A, Hikiji T, Kobatake N, Inagaki H, Ikema Y, Okamoto S, Okitani R, Kawakami T, Noguchi S, Itoh T, Shigeta K, Senba T, Matsumura K, Nakajima Y, Mizuno T, Morinaga M, Sasaki M, Togashi T, Oyama M, Hata H, Watanabe M, Komatsu T, Mizushima-Sugano J, Satoh T, Shirai Y, Takahashi Y, Nakagawa K, Okumura K, Nagase T, Nomura N, Kikuchi H, Masuho Y, Yamashita R, Nakai K, Yada T, Nakamura Y, Ohara O, Isogai T, Sugano S: Complete sequencing and characterization of 21,243 full-length human cDNAs. Nat Genet. 2004 Jan;36(1):40-5. doi: 10.1038/ng1285. Epub 2003 Dec 21.
Pubmed: 14702039
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