What is the prosthetic group of the retinal vision protein rhodopsin?

Question

Quizplus · Accepted Answer

Rhodopsin is a G protein-coupled receptor that is responsible for vision in dim light. It contains a prosthetic group called retinal, which is a derivative of vitamin A. Retinal is covalently bound to the protein opsin, and it undergoes a conformational change when it absorbs light. This conformational change triggers a series of events that ultimately leads to the activation of the G protein and the initiation of the visual signal transduction cascade.

What Is the Prosthetic Group of the Retinal Vision Protein