Identification
BMDB Protein ID BMDBP01341
Secondary Accession Numbers
  • BMDBP03163
Name Retinoid isomerohydrolase
Synonyms Not Available
Gene Name RPE65
Protein Type Enzyme
Biological Properties
General Function Secondary metabolites biosynthesis, transport and catabolism
Specific Function Critical isomerohydrolase in the retinoid cycle involved in regeneration of 11-cis-retinal, the chromophore of rod and cone opsins. Catalyzes the cleavage and isomerization of all-trans-retinyl fatty acid esters to 11-cis-retinol which is further oxidized by 11-cis retinol dehydrogenase to 11-cis-retinal for use as visual chromophore (PubMed:16096063, PubMed:19805034, PubMed:20100834). Essential for the production of 11-cis retinal for both rod and cone photoreceptors. Also capable of catalyzing the isomerization of lutein to meso-zeaxanthin an eye-specific carotenoid (By similarity). The soluble form binds vitamin A (all-trans-retinol), making it available for LRAT processing to all-trans-retinyl ester. The membrane form, palmitoylated by LRAT, binds all-trans-retinyl esters, making them available for IMH (isomerohydrolase) processing to all-cis-retinol. The soluble form is regenerated by transferring its palmitoyl groups onto 11-cis-retinol, a reaction catalyzed by LRAT (PubMed:15186777).
Pathways Not Available
Reactions
Retinyl ester + Water → 11-cis-Retinol + Fatty Acid details
cis-b,b-Carotene + Oxygen → Retinal details
GO Classification Not Available
Cellular Location Not Available
Gene Properties
Chromosome Location 3
Locus Not Available
SNPs RPE65
Gene Sequence
>1602 bp
ATGTCCAGCCAAGTTGAACATCCAGCTGGTGGTTACAAGAAACTGTTTGAAACTGTGGAG
GAACTATCCTCACCGCTCACAGCCCATGTTACAGGCAGGATCCCCCTCTGGCTAACCGGC
AGTCTCCTTCGATGTGGGCCAGGACTCTTTGAGGTTGGATCGGAACCATTTTACCACCTG
TTTGATGGGCAAGCCCTCCTACACAAGTTTGACTTTAAAGAAGGACATGTCACATACCAC
AGAAGGTTCATCCGCACTGATGCTTACGTACGGGCAATGACTGAGAAAAGGATCGTCATA
ACAGAATTTGGCACCTGTGCTTTCCCAGATCCCTGCAAGAATATATTTTCCAGGTTTTTT
TCTTACTTCCGAGGAGTGGAGGTTACTGACAATGCCCTTGTTAATATCTACCCAGTGGGG
GAAGATTACTATGCCTGCACAGAGACCAACTTCATTACAAAGGTTAATCCTGAGACCTTG
GAAACAATTAAGCAGGTTGACCTTTGCAACTATGTCTCAGTCAATGGAGCCACTGCTCAC
CCCCACATTGAAAATGATGGGACTGTTTACAACATTGGTAATTGCTTTGGGAAAAATTTT
TCAATTGCCTACAATATTGTAAAGATCCCACCACTACAAGCAGACAAGGAAGATCCAATA
AGCAAGTCAGAGATCGTTGTACAATTCCCCTGCAGTGACCGATTCAAGCCATCTTACGTC
CATAGTTTTGGTTTGACTCCCAACTATATTGTTTTTGTGGAGACACCAGTCAAAATTAAT
CTGTTCAAGTTTCTTTCTTCATGGAGTCTTTGGGGAGCCAATTACATGGATTGTTTTGAA
TCCAATGAAACCATGGGGGTTTGGCTTCATATTGCTGACAAAAAAAGAAAAAAGTATATC
AATAATAAATACAGGACCTCTCCTTTTAACCTCTTTCATCACATCAATACCTATGAAGAC
CATGAGTTTCTGATTGTGGATCTCTGTTGCTGGAAAGGATTTGAATTTGTTTATAATTAT
TCATATTTAGCCAATTTACGTGAGAACTGGGAAGAGGTGAAAAAAAATGCCAGAAAGGCT
CCTCAGCCTGAAGTTAGGAGATACGTACTTCCTTTGAATATTGACAAGGCTGACACAGGC
AAGAATTTAGTCACACTCCCCAACACAACTGCCACTGCAATTCTGTGCAGTGACGAGACC
ATCTGGCTGGAACCTGAGGTTCTCTTTTCAGGGCCTCGCCAAGCATTTGAGTTTCCTCAA
ATCAATTACCAGAAGTATGGTGGGAAACCTTACACATATGCATATGGACTTGGCTTGAAT
CACTTTGTTCCAGACAGGCTCTGTAAGCTGAACGTCAAAACTAAAGAAACCTGGGTATGG
CAAGAGCCTGATTCATACCCCTCAGAACCTATCTTTGTTTCTCACCCAGATGCCTTGGAG
GAAGATGACGGTGTAGTTCTGAGTGTGGTGGTGAGCCCTGGGGCAGGACAAAAGCCTGCT
TATCTTCTGATTCTGAATGCCAAGGACTTGAGTGAAGTTGCCAGGGCTGAAGTGGAGATT
AACATCCCCGTCACCTTTCATGGACTGTTCAAAAAATCCTGA
Protein Properties
Number of Residues 533
Molecular Weight 60944.0
Theoretical pI 6.41
Pfam Domain Function Not Available
Signals
  • None
Transmembrane Regions Not Available
Protein Sequence
>Retinal pigment epithelium-specific 65 kDa protein
MSSQVEHPAGGYKKLFETVEELSSPLTAHVTGRIPLWLTGSLLRCGPGLFEVGSEPFYHL
FDGQALLHKFDFKEGHVTYHRRFIRTDAYVRAMTEKRIVITEFGTCAFPDPCKNIFSRFF
SYFRGVEVTDNALVNIYPVGEDYYACTETNFITKVNPETLETIKQVDLCNYVSVNGATAH
PHIENDGTVYNIGNCFGKNFSIAYNIVKIPPLQADKEDPISKSEIVVQFPCSDRFKPSYV
HSFGLTPNYIVFVETPVKINLFKFLSSWSLWGANYMDCFESNETMGVWLHIADKKRKKYI
NNKYRTSPFNLFHHINTYEDHEFLIVDLCCWKGFEFVYNYSYLANLRENWEEVKKNARKA
PQPEVRRYVLPLNIDKADTGKNLVTLPNTTATAILCSDETIWLEPEVLFSGPRQAFEFPQ
INYQKYGGKPYTYAYGLGLNHFVPDRLCKLNVKTKETWVWQEPDSYPSEPIFVSHPDALE
EDDGVVLSVVVSPGAGQKPAYLLILNAKDLSEVARAEVEINIPVTFHGLFKKS
GenBank ID Protein AAC37306.1
UniProtKB/Swiss-Prot ID Q28175
UniProtKB/Swiss-Prot Entry Name RPE65_BOVIN
PDB IDs
GenBank Gene ID L11356
GeneCard ID RPE65
GenAtlas ID Not Available
HGNC ID Not Available
References
General References Not Available