UniProtKB - G3V7X8 (CP26B_RAT)
Protein
Cytochrome P450 26B1
Gene
Cyp26b1
Organism
Rattus norvegicus (Rat)
Status
Functioni
Involved in the metabolism of retinoic acid (RA), rendering this classical morphogen inactive through oxidation. Involved in the specific inactivation of all-trans-retinoic acid (all-trans-RA), with a preference for the following substrates: all-trans-RA > 9-cis-RA > 13-cis-RA. Generates several hydroxylated forms of RA, including 4-OH-RA, 4-oxo-RA, and 18-OH-RA. Essential for postnatal survival. Plays a central role in germ cell development: acts by degrading RA in the developing testis, preventing STRA8 expression, thereby leading to delay of meiosis. Required for the maintenance of the undifferentiated state of male germ cells during embryonic development in Sertoli cells, inducing arrest in G0 phase of the cell cycle and preventing meiotic entry. Plays a role in skeletal development, both at the level of patterning and in the ossification of bone and the establishment of some synovial joints (By similarity).By similarity
Has also a significant activity in oxidation of tazarotenic acid and may therefore metabolize that xenobiotic in vivo.By similarity
Catalytic activityi
- all-trans-retinoate + O2 + reduced [NADPH—hemoprotein reductase] = all-trans-4-hydroxyretinoate + H+ + H2O + oxidized [NADPH—hemoprotein reductase]By similarityThis reaction proceeds in the forwardBy similarity direction.
Cofactori
hemeBy similarity
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 441 | Iron (heme axial ligand)Sequence analysis | 1 |
GO - Molecular functioni
- heme binding Source: InterPro
- iron ion binding Source: InterPro
- monooxygenase activity Source: GO_Central
- oxidoreductase activity Source: GO_Central
- oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen Source: UniProtKB
- retinoic acid 4-hydroxylase activity Source: RGD
- retinoic acid binding Source: RGD
GO - Biological processi
- bone morphogenesis Source: RGD
- cell fate determination Source: RGD
- cellular response to retinoic acid Source: RGD
- cornification Source: RGD
- embryonic limb morphogenesis Source: RGD
- establishment of skin barrier Source: RGD
- establishment of T cell polarity Source: RGD
- inflammatory response Source: RGD
- kidney development Source: RGD
- male meiotic nuclear division Source: RGD
- negative regulation of retinoic acid receptor signaling pathway Source: RGD
- oxidation-reduction process Source: RGD
- positive regulation of gene expression Source: RGD
- positive regulation of tongue muscle cell differentiation Source: RGD
- proximal/distal pattern formation Source: RGD
- regulation of retinoic acid receptor signaling pathway Source: RGD
- regulation of T cell differentiation Source: RGD
- response to retinoic acid Source: RGD
- response to vitamin A Source: RGD
- retinoic acid catabolic process Source: RGD
- retinoic acid metabolic process Source: UniProtKB
- retinoic acid receptor signaling pathway Source: RGD
- spermatogenesis Source: RGD
- sterol metabolic process Source: GO_Central
- tongue morphogenesis Source: RGD
- xenobiotic metabolic process Source: UniProtKB
Keywordsi
Molecular function | Monooxygenase, Oxidoreductase |
Ligand | Heme, Iron, Metal-binding |
Enzyme and pathway databases
Reactomei | R-RNO-211916, Vitamins R-RNO-5365859, RA biosynthesis pathway |
Names & Taxonomyi
Protein namesi | |
Gene namesi | Name:Cyp26b1 |
Organismi | Rattus norvegicus (Rat) |
Taxonomic identifieri | 10116 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus |
Proteomesi |
|
Organism-specific databases
RGDi | 631379, Cyp26b1 |
Subcellular locationi
Endoplasmic reticulum
- Endoplasmic reticulum membrane By similarity; Peripheral membrane protein By similarity
- Microsome membrane By similarity; Peripheral membrane protein By similarity
Endoplasmic reticulum
- endoplasmic reticulum membrane Source: UniProtKB-SubCell
Other locations
- cytoplasm Source: RGD
Keywords - Cellular componenti
Endoplasmic reticulum, Membrane, MicrosomePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000416906 | 1 – 512 | Cytochrome P450 26B1Add BLAST | 512 |
Proteomic databases
PaxDbi | G3V7X8 |
PRIDEi | G3V7X8 |
PTM databases
iPTMneti | G3V7X8 |
PhosphoSitePlusi | G3V7X8 |
Expressioni
Gene expression databases
Bgeei | ENSRNOG00000015076, Expressed in testis and 22 other tissues |
Genevisiblei | G3V7X8, RN |
Family & Domainsi
Sequence similaritiesi
Belongs to the cytochrome P450 family.Curated
Phylogenomic databases
eggNOGi | KOG0157, Eukaryota |
GeneTreei | ENSGT00800000124060 |
HOGENOMi | CLU_001570_15_6_1 |
InParanoidi | G3V7X8 |
OMAi | INVYHEA |
OrthoDBi | 871849at2759 |
PhylomeDBi | G3V7X8 |
TreeFami | TF105093 |
Family and domain databases
Gene3Di | 1.10.630.10, 1 hit |
InterProi | View protein in InterPro IPR001128, Cyt_P450 IPR017972, Cyt_P450_CS IPR002403, Cyt_P450_E_grp-IV IPR036396, Cyt_P450_sf |
Pfami | View protein in Pfam PF00067, p450, 1 hit |
PRINTSi | PR00465, EP450IV PR00385, P450 |
SUPFAMi | SSF48264, SSF48264, 1 hit |
PROSITEi | View protein in PROSITE PS00086, CYTOCHROME_P450, 1 hit |
i Sequence
Sequence statusi: Complete.
G3V7X8-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MLFEGLELVS ALATLAACLV SVTLLLAVSQ QLWQLRWAAT RDKSCKLPIP
60 70 80 90 100
KGSMGFPLIG ETGHWLLQGS GFQSSRREKY GNVFKTHLLG RPLIRVTGAE
110 120 130 140 150
NVRKILLGEH QLVSTEWPRS ARVLLGPNTV ANSIGDIHRN KRKVFSKIFS
160 170 180 190 200
HEALESYLPK IQLVIQDTLR AWSSQPEAIN VYQEAQRLTF RMAVRVLLGF
210 220 230 240 250
SIPEEDLGNL FEVYQQFVEN VFSLPVDLPF SGYRRGIQAR QILQKGLEKA
260 270 280 290 300
IREKLQCTQG KDYSDALDIL IESSKEHGKE MTMQELKDGT LELIFAAYAT
310 320 330 340 350
TASASTSLIM QLLKHPAVLE KLREELRAQG LLHGGGCPCE GTLRLDMLSG
360 370 380 390 400
LRYLDCVIKE VMRLFTPVSG GYRTVLQTFE LDGFQIPKGW SVMYSIRDTH
410 420 430 440 450
DTAPVFKDVN VFDPDRFSQA RSEDKDGRFH YLPFGGGVRT CLGKHLAKLF
460 470 480 490 500
LKVLAVELAS TSRFELATRT FPRITLVPVL HPVDGLSVKF FGLDSNQNEI
510
LPETEAMLSA TV
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 251 | I → V in AAO92253 (Ref. 1) Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY245532 mRNA Translation: AAO92253.1 CH473957 Genomic DNA Translation: EDL91177.1 |
RefSeqi | NP_851601.1, NM_181087.2 |
Genome annotation databases
Ensembli | ENSRNOT00000020505; ENSRNOP00000020505; ENSRNOG00000015076 |
GeneIDi | 312495 |
KEGGi | rno:312495 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY245532 mRNA Translation: AAO92253.1 CH473957 Genomic DNA Translation: EDL91177.1 |
RefSeqi | NP_851601.1, NM_181087.2 |
3D structure databases
SMRi | G3V7X8 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 10116.ENSRNOP00000020505 |
PTM databases
iPTMneti | G3V7X8 |
PhosphoSitePlusi | G3V7X8 |
Proteomic databases
PaxDbi | G3V7X8 |
PRIDEi | G3V7X8 |
Genome annotation databases
Ensembli | ENSRNOT00000020505; ENSRNOP00000020505; ENSRNOG00000015076 |
GeneIDi | 312495 |
KEGGi | rno:312495 |
Organism-specific databases
CTDi | 56603 |
RGDi | 631379, Cyp26b1 |
Phylogenomic databases
eggNOGi | KOG0157, Eukaryota |
GeneTreei | ENSGT00800000124060 |
HOGENOMi | CLU_001570_15_6_1 |
InParanoidi | G3V7X8 |
OMAi | INVYHEA |
OrthoDBi | 871849at2759 |
PhylomeDBi | G3V7X8 |
TreeFami | TF105093 |
Enzyme and pathway databases
Reactomei | R-RNO-211916, Vitamins R-RNO-5365859, RA biosynthesis pathway |
Miscellaneous databases
PROi | PR:G3V7X8 |
Gene expression databases
Bgeei | ENSRNOG00000015076, Expressed in testis and 22 other tissues |
Genevisiblei | G3V7X8, RN |
Family and domain databases
Gene3Di | 1.10.630.10, 1 hit |
InterProi | View protein in InterPro IPR001128, Cyt_P450 IPR017972, Cyt_P450_CS IPR002403, Cyt_P450_E_grp-IV IPR036396, Cyt_P450_sf |
Pfami | View protein in Pfam PF00067, p450, 1 hit |
PRINTSi | PR00465, EP450IV PR00385, P450 |
SUPFAMi | SSF48264, SSF48264, 1 hit |
PROSITEi | View protein in PROSITE PS00086, CYTOCHROME_P450, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | CP26B_RAT | |
Accessioni | G3V7X8Primary (citable) accession number: G3V7X8 Secondary accession number(s): Q80YE5 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 18, 2012 |
Last sequence update: | November 16, 2011 | |
Last modified: | December 2, 2020 | |
This is version 61 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families