Cytochrome P450

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The cytochrome P450 enzyme family (CYP450), E.C. 1.14.-.-, were originally defined by their strong absorbance at 450 nm due to the reduced carbon monoxide-complexed haem component of the cytochromes. They are an extensive family of haem-containing monooxygenases with a huge range of both endogenous and exogenous substrates. Listed below are the human enzymes; their relationship with rodent CYP450 enzyme activities is obscure in that the species orthologue may not mediate metabolism of the same substrates. Although the majority of CYP450 enzyme activities are concentrated in the liver, the extrahepatic enzyme activities also contribute to patho/physiological processes. Genetic variation of CYP450 isoforms is widespread and likely underlies a significant proportion of the individual variation to drug administration.


CYP1 family


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP1A1 Show »

CYP1A2 Show »

CYP1B1 Show »


CYP2 family


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP2A6 Show »

CYP2A7 Show »

CYP2A13 Show »

CYP2B6 Show »

CYP2C8 Show »

CYP2C9 Show »

CYP2C18 Show »

CYP2C19 Show »

CYP2D6 Show »

CYP2E1 Show »

CYP2F1 Show »

CYP2J2 Show »

CYP2R1 Show »

CYP2S1 Show »

CYP2U1 Show »

CYP2W1 Show »


Comments Show »


CYP3 family


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP3A4 Show »

CYP3A5 Show »

CYP3A7 Show »

CYP3A43 Show »


CYP4 family


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP4A11 Show »

CYP4A22 Show »

CYP4B1 Show »

CYP4F2 Show »

CYP4F3 Show »

CYP4F8 Show »

CYP4F11 Show »

CYP4F12 Show »

CYP4F22 Show »

CYP4V2 Show »

CYP4X1 Show »

CYP4Z1 Show »


CYP5, CYP7 and CYP8 families


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP5A1 Show »

CYP7A1 Show »

CYP7B1 Show »

CYP8A1 Show »

CYP8B1 Show »


CYP11, CYP17, CYP19, CYP20 and CYP21 families


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP11A1 Show »

CYP11B1 Show »

CYP11B2 Show »

CYP17A1 Show »

CYP19A1 Show »

CYP20A1 Show »

CYP21A2 Show »


CYP24, CYP26 and CYP27 families


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP24A1 Show »

CYP26A1 Show »

CYP26B1 Show »

CYP26C1 Show »

CYP27A1 Show »

CYP27B1 Show »

CYP27C1 Show »


CYP39, CYP46 and CYP51 families


Unless otherwise stated all data refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

Enzymes

CYP39A1 Show »

CYP46A1 Show »

CYP51A1 Show »


Further Reading Show »

References Show »