What Are Some Examples of Protein Complexes Involved in Catalysis?
Several well-known protein complexes participate in catalytic processes:
1. ATP Synthase: This enzyme complex is involved in the synthesis of ATP, the energy currency of the cell. It operates through a rotary mechanism, converting ADP and inorganic phosphate into ATP. 2. Proteasome: This complex degrades unneeded or damaged proteins by proteolysis, a process that breaks peptide bonds. It ensures protein quality control within the cell. 3. Photosystem II: Involved in the light-dependent reactions of photosynthesis, this complex uses light energy to drive the splitting of water molecules, releasing oxygen and generating electrons for the electron transport chain.
