- Intrinsic protein includes those proteins that are embedded within the plasma membrane.
- Intrinsic protein are embedded in the plasma membrane partially or completely.
- They are more hydrophobic.
- They function as carrier proteins, enzymes and permeases.
- They are present in the surface of the plasma membrane
- They are more hydrophilic and less hydrophobic
- They function as receptors and antigens
- Example are erythrocyte spectrin.