Reaction: Caffeine to 1 product

Reaction
Caffeine
DB00201
1,3,7-Trimethyluric acid
DBMET00222
Reaction type
8-hydroxylation
Direction
Not Available
Major circulating metabolite?
No
Spontaneous?
No
Activity
unknown
References
  1. Zhou SF, Zhou ZW, Yang LP, Cai JP: Substrates, inducers, inhibitors and structure-activity relationships of human Cytochrome P450 2C9 and implications in drug development. Curr Med Chem. 2009;16(27):3480-675. Epub 2009 Sep 1. [Article]
  2. Kot M, Daniel WA: The relative contribution of human cytochrome P450 isoforms to the four caffeine oxidation pathways: an in vitro comparative study with cDNA-expressed P450s including CYP2C isoforms. Biochem Pharmacol. 2008 Aug 15;76(4):543-51. doi: 10.1016/j.bcp.2008.05.025. Epub 2008 Jul 9. [Article]
  3. Thorn CF, Aklillu E, McDonagh EM, Klein TE, Altman RB: PharmGKB summary: caffeine pathway. Pharmacogenet Genomics. 2012 May;22(5):389-95. doi: 10.1097/FPC.0b013e3283505d5e. [Article]
Comments
Not Available
Enzymes
EnzymeKmVmaxRole
Cytochrome P450 2C8Not AvailableNot Availableconfirmed
Cytochrome P450 2C9Not AvailableNot Availableconfirmed
Cytochrome P450 3A4Not AvailableNot Availableconfirmed
Cytochrome P450 1A2Not AvailableNot Availableconfirmed
Cytochrome P450 2E1Not AvailableNot Availableconfirmed