General function:

Involved in methylenetetrahydrofolate reductase (NADPH) activity

Specific function:

Catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate, a co-substrate for homocysteine remethylation to methionine.

Gene Name:

MTHFR

Uniprot ID:

P42898

Molecular weight:

74595.895

References

1. Scartozzi M, Maccaroni E, Giampieri R, Pistelli M, Bittoni A, Del Prete M, Berardi R, Cascinu S: 5-Fluorouracil pharmacogenomics: still rocking after all these years? Pharmacogenomics. 2011 Feb;12(2):251-65. doi: 10.2217/pgs.10.167. [PubMed:21332317 ]

General function:

Involved in electron carrier activity

Specific function:

Involved in pyrimidine base degradation. Catalyzes the reduction of uracil and thymine. Also involved the degradation of the chemotherapeutic drug 5-fluorouracil.

Gene Name:

DPYD

Uniprot ID:

Q12882

Molecular weight:

111400.32

Reactions

References

1. Ho DH, Townsend L, Luna MA, Bodey GP: Distribution and inhibition of dihydrouracil dehydrogenase activities in human tissues using 5-fluorouracil as a substrate. Anticancer Res. 1986 Jul-Aug;6(4):781-4. [PubMed:3752956 ]
2. Keizer HJ, De Bruijn EA, Tjaden UR, De Clercq E: Inhibition of fluorouracil catabolism in cancer patients by the antiviral agent (E)-5-(2-bromovinyl)-2'-deoxyuridine. J Cancer Res Clin Oncol. 1994;120(9):545-9. [PubMed:8045919 ]

General function:

Involved in monooxygenase activity

Specific function:

Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S-warfarin, diclofenac, phenytoin, tolbutamide and losartan.

Gene Name:

CYP2C9

Uniprot ID:

P11712

Molecular weight:

55627.365

References

1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]

General function:

Involved in catalytic activity

Specific function:

Not Available

Gene Name:

UMPS

Uniprot ID:

P11172

Molecular weight:

52221.075

Reactions

General function:

Involved in monooxygenase activity

Specific function:

Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen. Participates in the bioactivation of carcinogenic aromatic and heterocyclic amines. Catalizes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin.

Gene Name:

CYP1A2

Uniprot ID:

P05177

Molecular weight:

58406.915

References

1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]

General function:

Involved in monooxygenase activity

Specific function:

Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. In the epoxidation of arachidonic acid it generates only 14,15- and 11,12-cis-epoxyeicosatrienoic acids. It is the principal enzyme responsible for the metabolism the anti-cancer drug paclitaxel (taxol).

Gene Name:

CYP2C8

Uniprot ID:

P10632

Molecular weight:

55824.275

References

1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]

General function:

Involved in monooxygenase activity

Specific function:

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.

Gene Name:

CYP2A6

Uniprot ID:

P11509

Molecular weight:

56517.005

References

1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]

General function:

Involved in transferase activity, transferring glycosyl groups

Specific function:

May have a role in maintaining the integrity of the blood vessels. Has growth promoting activity on endothelial cells, angiogenic activity in vivo and chemotactic activity on endothelial cells in vitro. Catalyzes the reversible phosphorolysis of thymidine. The produced molecules are then utilized as carbon and energy sources or in the rescue of pyrimidine bases for nucleotide synthesis.

Gene Name:

TYMP

Uniprot ID:

P19971

Molecular weight:

49954.965

Reactions

References

1. Scartozzi M, Maccaroni E, Giampieri R, Pistelli M, Bittoni A, Del Prete M, Berardi R, Cascinu S: 5-Fluorouracil pharmacogenomics: still rocking after all these years? Pharmacogenomics. 2011 Feb;12(2):251-65. doi: 10.2217/pgs.10.167. [PubMed:21332317 ]

General function:

Involved in thymidylate synthase activity

Specific function:

Contributes to the de novo mitochondrial thymidylate biosynthesis pathway.

Gene Name:

TYMS

Uniprot ID:

P04818

Molecular weight:

35715.65

References

1. Formentini A, Sander S, Denzer S, Straeter J, Henne-Bruns D, Kornmann M: Thymidylate synthase expression in resectable and unresectable pancreatic cancer: role as predictive or prognostic marker? Int J Colorectal Dis. 2007 Jan;22(1):49-55. Epub 2006 Mar 15. [PubMed:16538493 ]
2. Huang CL, Yokomise H, Fukushima M, Kinoshita M: Tailor-made chemotherapy for non-small cell lung cancer patients. Future Oncol. 2006 Apr;2(2):289-99. [PubMed:16563096 ]
3. Fernandez-Contreras ME, Sanchez-Prudencio S, Sanchez-Hernandez JJ, Garcia de Paredes ML, Gisbert JP, Roda-Navarro P, Gamallo C: Thymidylate synthase expression pattern, expression level and single nucleotide polymorphism are predictors for disease-free survival in patients of colorectal cancer treated with 5-fluorouracil. Int J Oncol. 2006 May;28(5):1303-10. [PubMed:16596248 ]
4. Garcia V, Garcia JM, Pena C, Silva J, Dominguez G, Hurtado A, Alonso I, Rodriguez R, Provencio M, Bonilla F: Thymidylate synthase messenger RNA expression in plasma from patients with colon cancer: prognostic potential. Clin Cancer Res. 2006 Apr 1;12(7 Pt 1):2095-100. [PubMed:16609021 ]
5. Ploylearmsaeng SA, Fuhr U, Jetter A: How may anticancer chemotherapy with fluorouracil be individualised? Clin Pharmacokinet. 2006;45(6):567-92. [PubMed:16719540 ]
6. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352 ]
7. Rustum YM: Thymidylate synthase: a critical target in cancer therapy? Front Biosci. 2004 Sep 1;9:2467-73. [PubMed:15353299 ]
8. Scartozzi M, Maccaroni E, Giampieri R, Pistelli M, Bittoni A, Del Prete M, Berardi R, Cascinu S: 5-Fluorouracil pharmacogenomics: still rocking after all these years? Pharmacogenomics. 2011 Feb;12(2):251-65. doi: 10.2217/pgs.10.167. [PubMed:21332317 ]

General function:

Involved in transferase activity, transferring pentosyl groups

Specific function:

Catalyzes the reversible phosphorylytic cleavage of uridine and deoxyuridine to uracil and ribose- or deoxyribose-1-phosphate. The produced molecules are then utilized as carbon and energy sources or in the rescue of pyrimidine bases for nucleotide synthesis.

Gene Name:

UPP1

Uniprot ID:

Q16831

Molecular weight:

33934.005

Reactions

References

1. Yan R, Wan L, Pizzorno G, Cao D: Uridine phosphorylase in breast cancer: a new prognostic factor? Front Biosci. 2006 Sep 1;11:2759-66. [PubMed:16720348 ]