This is the trans isomer of retinal. Where would it be bound to the opsin protei

Question

This is the trans isomer of retinal. Where would it be bound to the opsin protein and why?

Question 12 options:

A. Retinal would be found at the cytosolic side of opsin because it is hydrophilic.

B. Retinal would be found in the transmembrane core of opsin because it is hydrophobic.

C. Retinal would be found in the transmembrane core of opsin because it is hydrophilic.

D. Retinal would be found at the cytosolic side of opsin because it is hydrophobic.

A. Retinal would be found at the cytosolic side of opsin because it is hydrophilic.

B. Retinal would be found in the transmembrane core of opsin because it is hydrophobic.

C. Retinal would be found in the transmembrane core of opsin because it is hydrophilic.

D. Retinal would be found at the cytosolic side of opsin because it is hydrophobic.

Explanation / Answer

B. It is hydrophobic becuase it doesn't has any ions or charges in it to make it water soluble and the cytosolic side of opsin protein is lipid containing making it easier for trams- retinal.

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