- Note on Nov. 12, 2013 I have revised pseudogene nomenclature to fit with HGNC requirements. Old nomenclature is retained as synonyms. This is part of an effort to translate the P450 nomenclature to Ensembl, including all pseudogenes.
- Note on July 22, 2011 I have completed a total revision of this page. All links are now working and new links have been added
- Note on Jan. 24, 2007 I have completed a total revision of this page.
- On May 17, I added links to the Human Gene Nomenclature Committee names (HGNC).
- On Aug. 14, 2009 these links were revised to accommodate a server address change at HGNC.
- Last revised August 14, 2009 (added CYP19 structure link)
- I have tried to make this table as up to date as possible. Entrez Gene, OMIM, Unigene and all other links have been checked and updated.
- I have included seven gene cluster maps that show human, mouse and rat compared (red links in the first column).
- These maps are further described in: Comparison of cytochrome P450 (CYP) genes from the mouse and human genomes Pharmacogenetics 14, 1-18 2004
- The Entrez Gene site has extensive data and links for intact sequences and some pseudogenes.
- For a complete set of human P450 sequences including pseudogenes go to the FASTA file
- All human P450 genes and all P450 pseudogenes are included in this table.
- This table contains more than 700 links to human P450 data, including known crystal structures.
- CYP names in column 1 are linked to their protein sequences, including the pseudogenes.
- X at the end of a CYP name means that name has been discontinued and replaced by a new name.
- Pseudogenes are named using suffixes to specify the four types of pseudogenes defined as:
- P is a full length or near full length pseudogene, it may be near or far from other P450s.
-ps is equivalent to P, but it is required nomenclature for mouse full length pseudogenes.
-de stands for detritus exons (found near other full length genes).
-se stands for solo exons, one or a few exons found distant from a P450 gene.
-ie stands for internal exons, duplicate exons found inside some P450 genes.
-de stands for detritus exons (found near other full length genes).
-se stands for solo exons, one or a few exons found distant from a P450 gene.
-ie stands for internal exons, duplicate exons found inside some P450 genes.
| CYP | Genbank | RefSeq mRNA | Genomic Assemblies | RefSeq Protein | OMIM | HGNC | Unigene | EntrezGene | comments |
|---|---|---|---|---|---|---|---|---|---|
| 1A1 | see related sequences under the Entrez Gene link | NM_000499 | see reference assembly under the Entrez Gene link | NP_000490 | 108330 | 2595 | Hs.72912 (69 ESTs) | CYP1A1 | 15q24.1 |
| 1A2 | see related sequences under the Entrez Gene link | NM_000761 | see reference assembly under the Entrez Gene link | NP_000752 | 124060 | 2596 | Hs.1361 (26 ESTs) | CYP1A2 | 15q24.1 |
| 1B1 | see related sequences under the Entrez Gene link | NM_000104 | see reference assembly under the Entrez Gene link | NP_000095 | 601771 see additional entries under phenotypes in the Entrez Gene link | 2597 | Hs.154654 (606 ESTs) | CYP1B1 | 2p22.2 |
| 1D1P syn:1A8P | AL359997 | no entry | NT_008470 | no entry | no entry | 39968 | no entry | no entry | 9q21.12 43% identical to 1A2, ortholog to Danio 1D1 |
| 2A 2ABFGST gene cluster map | see related sequences under the Entrez Gene link | no entry | NC_000019 | no entry | 122720 | 2607 | no entry | CYP2ABFGST cluster | 19q13.2 |
| 2A6 | see related sequences under the Entrez Gene link | NM_000762 | see reference assembly under the Entrez Gene link | NP_000753 | 122720 | 2610 | Hs.250615 (222 ESTs) | CYP2A6 | 19q13.2 Structures 2FDY2FDW2FDV2FDU1Z111Z10 |
| 2A6v2 | U22027 | no entry | no entry | no entry | 122720 | hold | no entry | CYP2A6 | 2A6*3 allele |
| 2A7v1 | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | 608054 | 2611 | Hs.719890 (28 ESTs) | CYP2A7 | 19q13.2 wt seq |
| 2A7v2 | U22029 | NM_000764 | see related sequences under the Entrez Gene link | NP_000755 | 608054 | hold | Hs.719890 (28 ESTs) | CYP2A7 | 19q13.2 hybrid, exon 8 from 2A18PC |
| 2A7_v1axΔ2a | NM_030589 | NM_030589 | see reference assembly under the Entrez Gene link | NP_085079 | no entry | hold | Hs.719890 (28 ESTs) | CYP2A7 | 19q13.2 alt. splice, exon 2 deleted |
| 2A7P1 syn:2A18PN | AC008537 | no entry | NT_011109 | no entry | no entry | 2612 | no entry | 2A7 pseudogene N-term. | formerly 2A7PT and 2A7PC |
| 2A7PTX | U22030 | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2612 | Hs.719890 (28 ESTs) | 2A7 pseudogene N-term. | identical to 2A18PN |
| 2A7PCX | U22044 | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2612 | Hs.719890 (28 ESTs) | 2A7 pseudogene N-term. | identical to 2A18PN |
| 2A13 | see related sequences under the Entrez Gene link | NM_000766 | see reference assembly under the Entrez Gene link | NP_000757 | no entry | 2608 | Hs.181973 (1 EST) | CYP2A13 | 19q13.2 |
| 2A18PC | AC008537 | no entry | NT_011109 | no entry | no entry | 2612 | no entry | 2A7 pseudogene C-term. | opposite end of 2A18PN |
| 2B6 | see related sequences under the Entrez Gene link | NM_000767 | see reference assembly under the Entrez Gene link | NP_000758 | 123930 | 2615 | Hs.1360 (38 ESTs) | CYP2B6 | 19q13.2 |
| 2B7P1 | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2616 | Hs.529117 (53 ESTs) | CYP2B71P | HIIB3 |
| 2B7P2X | AC011541 | no entry | NT_011109 | no entry | no entry | hold | no entry | no entry | exon 1 only, error = 2B6 |
| 2B7P3X | AC008539 | no entry | NT_011109 | no entry | no entry | hold | no entry | no entry | exon 1 only, error = 2B6 |
| 2C82C gene cluster map | see related sequences under the Entrez Gene link | NM_000770 | see reference assembly under the Entrez Gene link | NP_000761 | 601129 | 2622 | Hs.709188 (209 ESTs) | CYP2C8 | 10q23.33 Structures 1PQ2 |
| 2C9 | see related sequences under the Entrez Gene link | NM_000771 | see reference assembly under the Entrez Gene link | NP_000762 | 601130 | 2623 | Hs.282624 (187 ESTs) | CYP2C9 | 10q23.33 Structures 1R9O1OG51OG2 |
| 2C18 | see related sequences under the Entrez Gene link | NM_000772 | see reference assembly under the Entrez Gene link | NP_000763 | 601131 | 2620 | Hs.511872 (36 ESTs) | CYP2C18 | 10q23.33 |
| 2C19 | see related sequences under the Entrez Gene link | NM_000769 | see reference assembly under the Entrez Gene link | NP_000760 | 124020 | 2621 | Hs.282409 (7 ESTs) | CYP2C19 | 10q23.33 |
| 2C23P syn:2C62P | AL138921 | no entry | NT_030059 | no entry | no entry | 39970 | no entry | no entry | 10q24.31 pseudogene 5Mb upstream of 2C8 |
| 2C56P syn:2C-se1[7] | AC110078 | no entry | NT_005403 | no entry | no entry | 39971 | no entry | no entry | solo exon 7, 2q24.3 = old CYP2C56P |
| 2C58P | AL133513 | no entry | NT_030059 | no entry | no entry | 39969 | no entry | no entry | solo exons 1,2,3 between 2C19 and 2C9 |
| 2C59P syn:2C9-de2c3c | AL359672 | no entry | NT_030059 | no entry | no entry | 42406 | no entry | no entry | detritus exons 2,3 near 2C9 |
| 2C60P syn:2C8-de6b | AL359672 | no entry | NT_030059 | no entry | no entry | 42410 | no entry | no entry | detritus exon 6 near 2C8 |
| 2C61P syn:2C-se2[1:2] | AC069020 | no entry | NT_030059 | no entry | no entry | 39972 | no entry | no entry | solo exons 1,2 10q21.3 = old CYP2C61P |
| 2C63P syn:2C-se3[1] | AP000084 | no entry | NT_011512 | no entry | no entry | 42411 | no entry | no entry | solo exon 1, 21q21.2 = old CYP2C63P |
| 2C64P syn:2C-se4[1] | AF002223 | no entry | NG_012551 | no entry | no entry | 39974 | no entry | no entry | solo exon 1, Xq28 = old CYP2C64P inside MTMR1 |
| 2C115P syn:2C9-de1b | AL359672 | no entry | NT_030059 | no entry | no entry | 42405 | no entry | no entry | detritus exon 1 near 2C9 |
| 2D6 2D gene cluster map | see related sequences under the Entrez Gene link | NM_000106 | see reference assembly under the Entrez Gene link | NP_000097 | 124030 | 2625 | Hs.648256 (123 ESTs) | CYP2D6 | deleted in genome assembly 22q13.1 Structures 2F9Q |
| 2D7 | see sequences under the Unigene link | no entry | no entry | no entry | no entry | hold | Hs.333497 (33 ESTs) | no entry | alt. spliced 2D7 polymorphic full length 22q13.1 |
| 2D7P1 syn:2D7P | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2624 | no entry | CYP2D7P1 | 2D cluster at 22q13.2 |
| 2D7P2X merged with 2D7P1 | multiple | no entry | no entry | no entry | no entry | no entry | no entry | CYP2D7AP | 97.4% to 2D7P1 on a 44kb XbaI frag. |
| 2D8P1/2D8P | multiple | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2628 | no entry | CYP2D8P1 | 87.3% to 2D7P |
| 2D8P2X/2D7BP variant of CYP2D7P1 | X58468 | no entry | no entry | no entry | no entry | no entry | no entry | no entry | 96.8% to 2D7P1 on a 44kb XbaI frag. Also called 2D8BP |
| 2E1 | see related sequences under the Entrez Gene link | NM_000773 | see reference assembly under the Entrez Gene link | NP_000764 | 124040 | 2631 | Hs.12907 (259 ESTs) | CYP2E1 | 10q26.3 |
| 2F1 | see related sequences under the Entrez Gene link | NM_000774 | see reference assembly under the Entrez Gene link | NP_000765 | 124070 | 2632 | Hs. 558318 (10 ESTs) | CYP2F1 | 19q13.2 |
| 2F1P | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 18851 | no entry | CYP2F1P | missing N-term |
| 2G1P | see related sequences under the Entrez Gene link, also S80998 S80999 | no entry | see reference assembly under the Entrez Gene link | no entry | 601133 | 2633 | no entry | CYP2G1P | 94% missing exons 4, 5, 6 |
| 2G2P | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 15653 | no entry | CYP2G2P | in frame stops and frameshifts |
| 2J2 2J gene cluster map | see related sequences under the Entrez Gene link | NM_000775 | see reference assembly under the Entrez Gene link | NP_000766 | 601258 | 2634 | Hs.152096 (178 ESTs) | CYP2J2 | 1p32.1 |
| 2R1 | see related sequences under the Entrez Gene link | NM_024514 | see reference assembly under the Entrez Gene link | NP_078790 | 608713 | 20580 | Hs. 371427 (122 ESTs) | CYP2R1 | 11p15.2 |
| 2S1 | see related sequences under the Entrez Gene link | NM_030622 | see reference assembly under the Entrez Gene link | NP_085125 | 611529 | 15654 | Hs.98370 (210 ESTs) | CYP2S1 | 19q13.2 |
| 2T2P | multiple | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 18852 | no entry | CYP2T2P | 2T1 rat is expressed |
| 2T3P | AC008962 | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 18853 | no entry | CYP2T3P | 2T1 rat is expressed |
| 2U1 | see related sequences under the Entrez Gene link | NM_183075 | see reference assembly under the Entrez Gene link | NP_898898 | 610670 | 20582 | Hs.109087 (177 ESTs) | CYP2U1 | 4q25 synonym P450TEC |
| 2W1 | see related sequences under the Entrez Gene link | NM_017781 | see reference assembly under the Entrez Gene link | NP_060251 | no entry | 20243 | Hs.272795 (51 ESTs) | CYP2W1 | 7p22.3 NP_seq incomplete |
| 2AB1P | AC068644 | no entry | NT_005612 | no entry | no entry | 39975 | no entry | no entry | 3q27.1 = old CYP2D31P, 75% to mouse 2ab1 |
| 2AC1P | AC022650 | no entry | NT_007592 | no entry | no entry | 39976 | no entry | no entry | 6p12.3 = old CYP2C57P 68% to rat 2AC1 (XM_236969.1) |
| 3A 3A gene cluster map | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2635 | no entry | CYP3A cluster | 3A subfamily entry |
| 3A3X | multiple | no entry | no entry | no entry | no entry | hold | no entry | CYP3A4 | discontinued no. = 3A4 |
| 3A4 | see related sequences under the Entrez Gene link | NM_017460 | see reference assembly under the Entrez Gene link | NP_059488 | 124010 | 2637 | Hs.728751 (363 ESTs) | CYP3A4 | 7q22.1 Structures 2J0D 2J0C 1W0G 1W0F 1W0E 1TQN |
| 3A4P1 syn:3A4-ie1b | multiple | no entry | NT_007933 | no entry | no entry | hold | no entry | no entry | 7q22.1 partial internal exon |
| 3A5_v1 | see related sequences under the Entrez Gene link | NM_000777 | see reference assembly under the Entrez Gene link | NP_000768 | 605325 | 2638 | Hs.571258 (212 ESTs) | CYP3A5 | 7q22.1 = wt CYP3A5 |
| 3A5_v2 | L26985 see also related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2639 | no entry | no entry | CYP3A5_v2 = alt. splice of 3A5, = old 3A5P1, but not a pseudogene |
| 3A5_v3 | X90579 | no entry | NT_007933 | no entry | no entry | 18850 | no entry | no entry | CYP3A5_v3 = alt. splice of 3A5, = old CYP3A5P2, but not a pseudogene |
| 3A5P3 syn:3A5-de1b2b | AC069294 | no entry | NT_007933 | no entry | no entry | hold | no entry | CYP3A5P1 incorrectly named | detritus exons 1,2 near 3A5 |
| 3A7 | see related sequences under the Entrez Gene link | NM_000765 | see reference assembly under the Entrez Gene link | NP_000756 | 605340 | 2640 | Hs. 111944 (83 ESTs) | CYP3A7 | 7q22.1 |
| 3A7P1 syn:3A7-de1b2b | multiple | no entry | NT_007933 | no entry | no entry | no entry | no entry | CYP3A5P2 incorrectly named | 7q22.1 detritus exons 1,2 near 3A7 |
| 3A43 | see related sequences under the Entrez Gene link | NM_022820 | see reference assembly under the Entrez Gene link | NP_073731 | 606534 | 17450 | Hs.306220(8 ESTs) | CYP3A43 | 7q22.1 isoform 1 |
| 3A43 | see related sequences under the Entrez Gene link | NM_057095 | see reference assembly under the Entrez Gene link | NP_476436 | 606534 | 17450 | Hs.306220(8 ESTs) | CYP3A43 | 7q22.1 isoform 2 |
| 3A43 | see related sequences under the Entrez Gene link | NM_057096 | see reference assembly under the Entrez Gene link | NP_476437 | 606534 | 17450 | Hs.306220 (8 ESTs) | CYP3A43 | 7q22.1 isoform 3 |
| 3A51P syn:3A5-de13c | multiple | no entry | NT_007933 | no entry | no entry | 42418 | no entry | CYP3A5P1 incorrectly named | detritus exon 13 near 3A5 = old CYP3A51P |
| 3A52P syn:3A43-de4c6c | multiple | no entry | NT_007933 | no entry | no entry | 42412 | no entry | no entry | detritus exons 4,6 near 3A43 = old 3A52P, 3A53P |
| 3A54P syn:3A-se1[2] | AC016898 | no entry | NT_007819 | no entry | no entry | 42413 | no entry | no entry | solo exon 2, = old CYP3A54P near CYP2W1 |
| 3A55P syn:3A-se2[5] | AC004887 | no entry | NT_007819 | no entry | no entry | hold | no entry | no entry | solo exon 5, = old CYP3A55P near CYP2W1, 214kb from 3A54P |
| 3A137P syn:3A43-de1b | multiple | no entry | NT_007933 | no entry | no entry | 42419 | no entry | no entry | detritus exon 1 near 3A43 |
| 4A11 4ABXZ gene cluster map | see related sequences under the Entrez Gene link | NM_000778 | see reference assembly under the Entrez Gene link | NP_000769 | 601310 | 2642 | Hs.1645 (42 ESTs) | CYP4A11 | 1p33 |
| 4A20X | no entry | no entry | no entry | no entry | no entry | hold | no entry | no entry | restored to old name 4Z1 |
| 4A22 | see related sequences under the Entrez Gene link | NM_001010969 | see reference assembly under the Entrez Gene link | NP_001010969 | no entry | 20575 | Hs.726474 (17 ESTs) | CYP4A22 | 1p33 95% identical to 4A11 |
| 4A26P syn:4A-se1[12] | AL731892 | no entry | NT_032977 | no entry | no entry | 39980 | no entry | no entry | solo exon 12, = old CYP4A26P |
| 4A27P syn:4A-se3[12] | AL731892 | no entry | NT_032977 | no entry | no entry | 42414 | no entry | no entry | solo exon 12, = old CYP4A27P |
| 4A43P syn:4A-se2[1] | AL731892 | no entry | NT_032977 | no entry | no entry | 42417 | no entry | no entry | solo exon 1 |
| 4A44P syn:4A-se4[2] | AL731892 | no entry | NT_032977 | no entry | no entry | 42416 | no entry | no entry | solo exon 2 |
| 4B1 | see related sequences under the Entrez Gene link | NM_000779 | see reference assembly under the Entrez Gene link | NP_000770 | 124075 | 2644 | Hs.436317 (192 ESTs) | CYP4B1 | 1p33 |
| 4F2 4F gene cluster map | see related sequences under the Entrez Gene link | NM_001082 | see reference assembly under the Entrez Gene link | NP_001073 | 604426 | 2645 | Hs.101 (69 ESTs) | CYP4F2 | 19p13.12 |
| 4F3 | see related sequences under the Entrez Gene link | NM_000896 | see reference assembly under the Entrez Gene link | NP_000887 | 601270 | 2646 | Hs.106242 (93 ESTs) | CYP4F3 | 19p13.12 |
| 4F8 | see related sequences under the Entrez Gene link | NM_007253 | see reference assembly under the Entrez Gene link | NP_009184 | 611545 | 2648 | Hs.268554 (42 ESTs) | CYP4F8 | 19p13.12 |
| 4F9P | AC004609 | no entry | NT_011295 | no entry | no entry | hold | no entry | no entry | 19p13.12 35kb upstream of 4F11 |
| 4F10P | AD000685 | no entry | NT_011295 | no entry | no entry | hold | no entry | no entry | 19p13.12 between 4F3 and 4F12 |
| 4F11 | see related sequences under the Entrez Gene link | NM_021187 | see reference assembly under the Entrez Gene link | NP_067010 | 611517 | 13265 | Hs.187393 (73 ESTs) | CYP4F11 | 19p13.12 |
| 4F12 | see related sequences under the Entrez Gene link | NM_023944 | see reference assembly under the Entrez Gene link | NP_076433 | 611485 | 18857 | Hs.131459 (101 ESTs) | CYP4F12 | 19p13.12 |
| 4F22 | see related sequences under the Entrez Gene link | NM_173483 | see reference assembly under the Entrez Gene link | NP_775754 | 611495 604777 | 26820 | Hs.156452 (12 ESTs) | CYP4F22 | 19p13.12 lamellar ichthyosis type 3 |
| 4F23P | multiple | no entry | NT_011295 | no entry | no entry | 39944 | no entry | no entry | 19p13.12 between 4F22 and 4F8 |
| 4F24P | multiple | no entry | NT_011295 | no entry | no entry | 39945 | Hs.438274 (12 ESTs) | no entry | 19p13.12 between 4F12 and 4F2 |
| 4F25P syn:4F-se1[6:8] | multiple | no entry | NT_078070 | no entry | no entry | 39949 | no entry | no entry | 9q13 = old 4F25P, in 3 prime UTR of AK125850, inside PTGES3 |
| 4F26P syn:4F-se2[6] | multiple | no entry | NT_008413 | no entry | no entry | 39948 | no entry | no entry | 9p13.3 = old 4F26P |
| 4F27P syn:4F-se3[6:7:8] | multiple | no entry | NT_022135 | no entry | no entry | 39946 | no entry | no entry | 2q21.1 = old 4F27P |
| 4F29P syn:4F-se4[6:7:8] | multiple | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2647 | no entry | CYP4F-se4[6:7:8] | 21q11.2 = old 4F29P synonym CYP4F3LP |
| 4F30P syn:4F-se9[6:7:8] | AC132479 | no entry | NT_022135 | no entry | no entry | 25270 | no entry | no entry | 2q21.1 = old CYP4F30P |
| 4F31P syn:4F-se10[6:7:8] | AC131180 | no entry | NT_022135 | no entry | no entry | 39955 | no entry | no entry | 2q21.1 = old CYP4F31P |
| 4F32P syn:4F-se5[6:8] | multiple | no entry | NT_022171 | no entry | no entry | 39951 | no entry | no entry | 2q11.1 = old CYP4F32P |
| 4F33P syn:4F-se6[6] | AL390726 | no entry | NT_008413 | no entry | no entry | 39952 | no entry | no entry | 9p13.1 = old CYP4F33P |
| 4F34P syn:4F-se7[6:7:8] | AL391382 | no entry | NT_024524 | no entry | no entry | 39953 | no entry | no entry | 13q11 = old CYP4F34P |
| 4F35P syn:4F-se8[6:7:8] | BC037172.1 | no entry | NT_010859 | no entry | no entry | 39954 | no entry | no entry | 18p11.21 = old CYP4F35P |
| 4F36P syn:4F2-de12b | AC004791 | no entry | NT_011295 | no entry | no entry | 42407 | no entry | no entry | exon 12 downstream of 4F2 = old CYP4F36P |
| 4F44P syn:4F-se12[6:8] | AC134698 | no entry | NT_167187 | no entry | no entry | 39957 | no entry | no entry | 8p11.1 = old CYP4F44P |
| 4F45P syn:4F-se13[6:8] | multiple | no entry | NT_078043 | no entry | no entry | 39950 | no entry | no entry | 9p11.2 = old CYP4F45P identical to CYP4F-se1[6:8] |
| 4F59P syn:4F-se14[6:8] | multiple | no entry | NT_078055 | no entry | no entry | 39947 | no entry | no entry | 9p11.2 identical to CYP4F-se1[6:8] synonym CYP4F59P |
| 4F60P syn:4F-se15[6:7:8] | hold | no entry | hold | no entry | no entry | 42468 | no entry | no entry | chr9:44019570- 44020591 (-) synonym CYP4F60P |
| 4F61P syn:4F-se16[6:7:8] | hold | no entry | hold | no entry | no entry | 42469 | no entry | no entry | chr9:66367007- 66368028 (-) synonym CYP4F61P |
| 4F62P syn:4F-se11[6:7:8] | multiple | no entry | NT_022135 | no entry | no entry | 39956 | no entry | no entry | 2q21.1 = old CYP4F43P |
| 4F63P 4F2-ie2b | internal duplicated exon 2 | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2645 | no entry | no entry | 19p13.12 |
| 4F64P 4F3-ie2b | internal duplicated exon 2 | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2646 | no entry | no entry | 19p13.12 |
| 4F65P | 1 kb downstream of CYP4F44P | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | hold | no entry | no entry | 19p13.12 |
| 4V2 | see related sequences under the Entrez Gene link | NM_207352 | see reference assembly under the Entrez Gene link | NP_997235 | 608614 210370 | 23198 | Hs.587231 (236 ESTs) | CYP4V2 | 4q35.2 = old 4AH1, Bietti crystalline corneoretinal dystrophy |
| 4X1 | see related sequences under the Entrez Gene link | NM_178033.1 | see reference assembly under the Entrez Gene link | NP_828847 | no entry | 20244 | Hs.439760 (148 ESTs) | CYP4X1 | 1p33 not in Build 33 |
| 4Z1 | see related sequences under the Entrez Gene link | NM_178134 | see reference assembly under the Entrez Gene link | NP_835235 | no entry | 20583 | Hs.176588 (38 ESTs) | CYP4Z1 | 1p33 formerly 4A20 |
| 4Z2P | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 24426 | Hs.591431 (7 ESTs) | CYP4Z2P | full pseudogene between 4B1, 4A11, 94% to 4Z1 |
| 4AH1X | no entry | no entry | no entry | no entry | no entry | hold | no entry | no entry | renamed 4V2 |
| 5A1_v1 | see related sequences under the Entrez Gene link | NM_001061 | see reference assembly under the Entrez Gene link | NP_001052 | 274180 | 11609 | Hs.520757 (234 ESTs) | CYP5A1, TBXAS1 | TBXAS1 thromboxane synthase form-I 7q34 |
| 5A1_v2 | see related sequences under the Entrez Gene link | NM_030984 | see reference assembly under the Entrez Gene link | NP_112246 | 274180 | 11609 | Hs.520757 (234 ESTs) | CYP5A1, TBXAS1 | thromboxane synthase form-II 7q34 |
| 7A1 | see related sequences under the Entrez Gene link | NM_000780 | see reference assembly under the Entrez Gene link | NP_000771 | 118455 | 2651 | Hs.1644 (16 ESTs) | CYP7A1 | 8q12.1 |
| 7B1 | see related sequences under the Entrez Gene link | NM_004820 | see reference assembly under the Entrez Gene link | NP_004811 | 603711 | 2652 | Hs.667720 (21 ESTs) | CYP7B1 | 8q12.3 |
| 8A1 | see related sequences under the Entrez Gene link | NM_000961 | see reference assembly under the Entrez Gene link | NP_000952 | 601699 | 9603 | Hs.302085 (78 ESTs) | CYP8A1, PTGIS | prostacyclin synthase 20q13.13 PTGIS Structures 2IAG |
| 8B1 | see related sequences under the Entrez Gene link | NM_004391 | see reference assembly under the Entrez Gene link | NP_004382 | 602172 | 2653 | Hs.447793 (24 ESTs) | CYP8B1 | 3p22.1 |
| 11A1 | see related sequences under the Entrez Gene link | NM_000781 | see reference assembly under the Entrez Gene link | NP_000772 | 118485 | 2590 | Hs.303980 (574 ESTs) | CYP11A1 | 15q24.1 |
| 11B1 | see related sequences under the Entrez Gene link | NM_000497 | see reference assembly under the Entrez Gene link | NP_000488 | 610613 202010 103900 | 2591 | Hs.184927 (134 ESTs) | CYP11B1 isoform 1 | 8q24.3 |
| 11B1 | see related sequences under the Entrez Gene link | NM_001026213 | see reference assembly under the Entrez Gene link | NP_001021384 | 610613 202010 103900 | 2591 | Hs.184927 (134 ESTs) | CYP11B1 isoform 2 | 8q24.3, missing coding exon 8, including the heme signature |
| 11B2 | see related sequences under the Entrez Gene link | NM_000498 | see reference assembly under the Entrez Gene link | NP_000489 | 124080 203400 610600 103900 | 2592 | Hs.632054 (2 ESTs) | CYP11B2 | 8q24.3, Corticosterone Methyloxidase Type I and Type II Deficiency, Glucocorticoid-Remediable Aldosteronism |
| 17A1 | see related sequences under the Entrez Gene link | NM_000102 | see reference assembly under the Entrez Gene link | NP_000093 | 609300 202110 | 2593 | Hs.438016 (823 ESTs) | CYP17A1 | 10q24.32 |
| 19A1 | see related sequences under the Entrez Gene link | NM_000103 | see reference assembly under the Entrez Gene link | NP_000094 | 107910 139300 | 2594 | Hs.260074 (1047 ESTs) | CYP19A1 form 1 | 15q21.2, aromatase, hereditary gynecomastia Structures 3EQM |
| 19A1 | see related sequences under the Entrez Gene link | NM_031226 | see reference assembly under the Entrez Gene link | NP_112503 | 107910 139300 | 2594 | Hs.260074 (1047 ESTs) | CYP19A1 form 2 | 15q21.2, aromatase, hereditary gynecomastia, includes untranslated exon 2a that makes a longer 5 prime UTR |
| 20A1 | see related sequences under the Entrez Gene link | NM_177538 | see reference assembly under the Entrez Gene link | NP_803882 | no entry | 20576 | Hs.446065 (161 ESTs) | CYP20A1 form 1 | 2q33.2, full length |
| 21A1P | see related sequences under the Entrez Gene link | no entry | see reference assembly under the Entrez Gene link | no entry | no entry | 2599 | no entry | CYP21A1P | 6p21.33 pseudogene |
| 21A2 | see related sequences under the Entrez Gene link | NM_000500 | see reference assembly under the Entrez Gene link | NP_000491 | 201910 | 2600 | Hs.654479 (581 ESTs) | CYP21A2 | 6p21.33 CYP21 |
| 24A1 | see related sequences under the Entrez Gene link | NM_000782 | see reference assembly under the Entrez Gene link | NP_000773 | 126065 | 2602 | Hs.89663 (48 ESTs) | CYP24A1 | 20q13.2 |
| 26A1 | see related sequences under the Entrez Gene link | NM_000783 | see reference assembly under the Entrez Gene link | NP_000774 | 602239 | 2603 | Hs.150595 (72 ESTs) | CYP26A1 form 1 | 10q23.33 P450RAI-1, full length |
| 26A1 | see related sequences under the Entrez Gene link | NM_057157 | see reference assembly under the Entrez Gene link | NP_476498 | 602239 | 2603 | Hs.150595 (72 ESTs) | CYP26A1 form 2 | 10q23.33 P450RAI-1, truncated 69 amino acids at N-term |
| 26B1 | see related sequences under the Entrez Gene link | NM_019885 | see reference assembly under the Entrez Gene link | NP_063938 | 605207 | 20581 | Hs.91546 (75 ESTs) | CYP26B1 | 2p13.2 P450RAI-2 |
| 26C1 | see related sequences under the Entrez Gene link | NM_183374 | see reference assembly under the Entrez Gene link | NP_899230 | 608428 | 20577 | Hs.369993 (5 ESTs) | CYP26C1 | 10q23.33 |
| 27A1 | see related sequences under the Entrez Gene link | NM_000784 | see reference assembly under the Entrez Gene link | NP_000775 | 606530 213700 | 2605 | Hs.516700 (393 ESTs) | CYP27A1 | 2q35 |
| 27B1 | see related sequences under the Entrez Gene link | NM_000785 | see reference assembly under the Entrez Gene link | NP_000776 | 609506 264700 | 2606 | Hs.524528 (89 ESTs) | CYP27B1 | 12q14.1 |
| 27C1 | see related sequences under the Entrez Gene link, and AC027142 | NM_001001665, short at N-term | see reference assembly under the Entrez Gene link | NP_001001665, short at N-term | no entry | 33480 | Hs.407639 (14 ESTs) | CYP27C1 | 2q14.3 FLJ16008, Entrez Gene seq is short |
| 39A1 | see related sequences under the Entrez Gene link | NM_016593 | see reference assembly under the Entrez Gene link | NP_057677 | 605994 | 17449 | Hs.387367 (116 ESTs) | CYP39A1 | 6p12.3 |
| 46A1 | see related sequences under the Entrez Gene link | NM_006668 | see reference assembly under the Entrez Gene link | NP_006659 | 604087 | 2641 | Hs.25121 (44 ESTs) | CYP46A1 | 14q32.2 |
| 46A4P syn:46A-se1[12:13:14] | AL356289 | no entry | NT_032977 | no entry | no entry | 42349 | no entry | no entry | 1p33 12Mb from CYP2J2 = old CYP46A4P |
| 51A1 | see related sequences under the Entrez Gene link | NM_000786 | see reference assembly under the Entrez Gene link | NP_000777 | 601637 | 2649 | Hs.417077 (468 ESTs) | CYP51A1 | 7q21.2 |
| 51P1 | multiple | no entry | NT_022459 | no entry | no entry | 20245 | no entry | no entry | 3p12.2 |
| 51P2 | multiple | no entry | NT_024524 | no entry | no entry | 20251 | no entry | no entry | 13q12.3 |
| 51P3 | AL033378 | no entry | NT_025741 | no entry | no entry | 41991 | no entry | no entry | 6q24.3 |
| CYP | Genbank | RefSeq mRNA | Genomic Assemblies | RefSeq Protein | OMIM | HGNC | Unigene | EntrezGene | comments |