The Enzyme Database

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Accepted name: 11-cis-retinol dehydrogenase
Reaction: 11-cis-retinol—[retinal-binding-protein] + NAD+ = 11-cis-retinal—[retinol-binding-protein] + NADH + H+
Glossary: 11-cis-retinal = 11-cis-retinaldehyde
Other name(s): RDH5 (gene name)
Systematic name: 11-cis-retinol:NAD+ oxidoreductase
Comments: This enzyme, abundant in the retinal pigment epithelium, catalyses the reduction of 11-cis-retinol to 11-cis-retinal [1] while the substrate is bound to the retinal-binding protein [4]. This is a crucial step in the regeneration of 11-cis-retinal, the chromophore of rhodopsin. The enzyme can also accept other cis forms of retinol [2].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Simon, A., Hellman, U., Wernstedt, C. and Eriksson, U. The retinal pigment epithelial-specific 11-cis retinol dehydrogenase belongs to the family of short chain alcohol dehydrogenases. J. Biol. Chem. 270 (1995) 1107–1112. [PMID: 7836368]
2.  Wang, J., Chai, X., Eriksson, U. and Napoli, J.L. Activity of human 11-cis-retinol dehydrogenase (Rdh5) with steroids and retinoids and expression of its mRNA in extra-ocular human tissue. Biochem. J. 338 (1999) 23–27. [PMID: 9931293]
3.  Liden, M., Romert, A., Tryggvason, K., Persson, B. and Eriksson, U. Biochemical defects in 11-cis-retinol dehydrogenase mutants associated with fundus albipunctatus. J. Biol. Chem. 276 (2001) 49251–49257. [PMID: 11675386]
4.  Wu, Z., Yang, Y., Shaw, N., Bhattacharya, S., Yan, L., West, K., Roth, K., Noy, N., Qin, J. and Crabb, J.W. Mapping the ligand binding pocket in the cellular retinaldehyde binding protein. J. Biol. Chem. 278 (2003) 12390–12396. [PMID: 12536149]
[EC created 2011]

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