Protein kinases are enzymes that transfer the terminal phosphate from ATP to an amino acid residue on the target protein. Many are located on the plasma membrane as integral membrane proteins or peripheral membrane proteins. What purpose may be served by their plasma membrane localization?
A) ATP is more abundant near the plasma membrane.
B) They can more readily encounter and phosphorylate other membrane proteins.
C) Membrane localization lowers the activation energy of the phosphorylation reaction.
D) They flip back and forth across the membrane to access target proteins on either side.
E) They require phospholipids as a cofactor.
Integration of protein, carbohydrate, and fat metabolism
Heat Transfer Mechanisms
Versatility of the pyridoxal phosphate Schiff base (aldimine) in amino acid reactions
Transfer from the rough endoplasmic reticulum (RER) to the Golgi complex
Summary of the digestive enzymes
The quaternary level of protein structure as seen in hemoglobin