retinal isomerase

ret·i·nal i·som·er·ase

an isomerase that catalyzes the cis-trans-interconversion of all-trans-retinal to 11-cis-retinal; a part of the vision cycle. Synonym(s): retinaldehyde isomerase

ret·i·nal i·som·er·ase

(ret'i-năl ī-som'ĕr-ās) An isomerase that catalyzes the cis-trans-interconversion of all-trans-retinal(aldehyde) to 11-cis-retinal(aldehyde); a part of the vision cycle.

retinal isomerase

The enzyme in rods and cones that converts trans-retinal to cis-retinal, which then combines with the opsin present to form a photopigment responsive to light.