The hydrophilic regions of a membrane protein are most likely to be found EXPOSED on the surface of the membrane.
- A membrane protein is a protein that is attached to a biological lipid membrane.
- The membrane proteins can be divided into
- integral membrane proteins (permanently attached to the membrane)
- peripheral membrane protein (temporarily attached to the membrane)
- Membrane proteins have hydrophilic domains that are in contact with water (H2O) molecules on the outside of the lipid bilayer.
- These hydrophilic regions are composed of hydrophilic amino acids such as glutamic acid, lysine and arginine.
- Moreover, membrane proteins have hydrophobic regions when they are incorporated into the hydrophobic portion of the lipid bilayer.
In conclusion, the hydrophilic regions of a membrane protein are most likely to be found EXPOSED on the surface of the membrane.
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