Question

A mutation inhibits GTPase function. How would this effect the G protein of a cell?

Answer 1

Answer. A condition where a mutation inhibits GTPase function will also inhibit the G protein of a cell. G proteins are a family of proteins that act as molecular switches inside cells that have the function of transmitting signals from a variety of stimuli from outside to inside of the cell. They are so-called because they bind the guanine nucleotides GDP and GTP. G proteins belong to the larger group of enzymes called GTPases. G protein is the most prominent type of GTPase, therefore if a mutation inhibits the GTPase function it will also inhibit G protein function.