Cis Retinal

Some articles on cis retinal, retinal, cis:

Visual Phototransduction
... via G-protein coupled receptors called opsins which contain the chromophore 11-cis retinal. 11-cis retinal is covalently linked to the opsin receptor via Schiff base forming retinylidene protein ... When struck by photon, 11-cis retinal undergoes photoisomerization to all-trans retinal which changes the conformation of the opsin GPCR leading to signal transduction ...
Bleach And Recycle - Alternate Cone Pathway
... In this pathway, cones reduce all-trans retinal to all-trans retinol via all-trans Retinol Dehydrogenase, then transport all-trans retinol to Muller's cells ... There, it is transformed into 11-cis retinol by all-trans retinol isomerase, and can either be stored as retinyl esters within Muller's cells, or transported back to the cone photoreceptors, where it is ... adaptation in the cone system, and the presence of 11-cis Retinal Dehydrogenase in cone photoreceptors, as it is not found in rods, only in the RPE ...