1. (ret´i-nal) Relating to the retina. 2. (ret´i-nal) retinaldehyde; most commonly referring to the all-trans form.
r. dehydrogenase an oxidoreductase catalyzing the interconversion of retinaldehyde and NAD+ to retinoic acid and NADH; thus affecting growth and differentiation.retinaldehyde dehydrogenase;
r. isomerase an isomerase that catalyzes the cis-trans-interconversion of all-trans-retinal(dehyde) to 11-cis-retinal(dehyde); a part of the vision cycle.retinaldehyde isomerase;
r. reductase alcohol dehydrogenase (NAD(P)+).
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