Question

Which of the following statements about molecular switches is false?

(a) Phosphatases remove the phosphate from GTP on GTP-binding proteins, turning them off.
(b) Protein kinases transfer the terminal phosphate from ATP onto a protein.
(c) Serine/threonine kinases are the most common types of protein kinase.
(d) A GTP-binding protein exchanges its bound GDP for GTP to become activated.

Answer 1

(a) Phosphatases remove the phosphate from GTP on GTP-binding proteins, turning them off

Step-by-step explanation:

• A molecular switches are molecule that can be reversibly shifted between two or more stable states.
• The molecules may be shifted between the states in response to environmental stimuli, such as changes in pH, light, temperature, an electric current, micro-environment, or in the presence of ions and other ligands.