Integral proteins present in the cell membrane help in the transportation of materials and the signaling of other cells.
What are integral proteins and their functions?
- Integral proteins are the proteins attached permanently to the plasma membrane and are embedded in the whole layer of the membrane.
- They are also known as intrinsic proteins.
Functions of intrinsic proteins:
- Transportation: Hydrophilic compounds may be able to get through the cell membrane due to intrinsic proteins.
- Signal transduction:
- A binding site may be present in certain membrane proteins.
- These binding sites have distinctive structures that closely resemble those of chemical messengers.
- A receptor membrane protein that is placed inside the cell wall will link with a hormone when it comes into contact with the cell wall.
- Depending on the type of hormone or other chemicals, the hormone can alter the receptor protein and induce a certain reaction to occur inside the cell.
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