Retinal isomerase

In enzymology, a retinal isomerase (EC 5.2.1.3) is an enzyme that catalyzes the isomerisation of trans Retinal in eye into 11-cis-retinal which is form suitable to bind with protein opsin

Hence, this enzyme has one substrate, all-trans-retinal, and one product, 11-cis-retinal.

This enzyme belongs to the family of isomerases, specifically cis-trans isomerases. The systematic name of this enzyme class is all-trans-retinal 11-cis-trans-isomerase. Other names in common use include retinene isomerase, and retinoid isomerase. This enzyme participates in retinol metabolism.