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.
Localization of a Peptide The peptide is revealed by means of immunocytochemistry. The photomicrogra
Schematic drawing of initial/terminal (I/T) lymph vessel.
Channeling in carbamoyl phosphate synthetase
The Making of a Protein
Venn diagram representation of 17,067 medium and large clusters of protein
Gel electrophoresis of hemoglobin protein, first performed by Linus Pauling.