This site is intended for healthcare professionals

account_circleSign in
Go to /sign-in page

You can view 5 more pages before signing in

Further classification of the cytochrome P450 system

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • the isoenzymes in the cytochrome P450 system are further classified according to the similarity of the amino acid structure
    • if there is >40% sequence similarity then the enzymes are grouped in a family denoted by CYP (CYtochrome P450) and a number e.g. CYP 1
    • if there is > 55% sequence similarity then the subfamily is grouped in a sub-group identified by a capital letter e.g. CYP 1A
    • if an individual isoenzyme has been identified then it is given a further number e.g. CYP 1A2

Create an account to add page annotations

Create a free account

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page