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Table 1 CYP numbering scheme

From: The Cytochrome P450 Homepage

Animals

Plants

Lower eukaryotes

1-49

(CYP49A2)

71-99

(CYP99A12)

51-69

(CYP69A1)

300-499

(CYP379A3)

701-999

(CYP804A1)

501-699

(CYP699A2)

3001-4999

(reserved)

7001-9999

(reserved)

5001-6999

(CYP5314A1*)

Bacteria

  

101-299 (CYP299A1)

  

1001-2999 (CYP1015A1)

  
  1. Numbers in parentheses are the last assigned CYP name in that block.
  2. *An unusual group of hybrid fungal P450s are given the block 6001-6099 (6004A2) so that they can be kept together.