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Opsin — Free Biology Illustration | GPAI | GPAI

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Opsin

Opsin

Biology

Opsin

Compact membrane photoreceptor protein depicted as a bundle of seven transmembrane alpha helices packed into a cylindrical or slightly oval cluster, shown either as ribbon-like helices or smooth helical cylinders. The structure is colored purple to blue-purple, with short loop regions connecting the helices and a small central binding pocket for the light-sensitive chromophore or pigment, sometimes highlighted in orange.

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