Question

The protein SOS helps facilitate the exchange of GDP for GTP. What would be the effect of a mutation that inhibits the interaction between SOS and one of its relay proteins?

1) The exchange of GDP for GTP would be unaffected.
2) The exchange of GDP for GTP would be enhanced.
3) The exchange of GDP for GTP would be inhibited.
4) The effect of the mutation cannot be determined.

Answer 1

A mutation that inhibits the interaction between SOS and one of its relay proteins would inhibit the exchange of GDP for GTP, which would affect cell growth and division.

Step-by-step explanation:

A mutation that inhibits the interaction between SOS and one of its relay proteins would have an effect on the exchange of GDP for GTP.

SOS is responsible for facilitating this exchange by activating another protein called Ras.

Ras then initiates a signaling pathway that leads to cell growth and division.

If the interaction between SOS and its relay protein is inhibited, the exchange of GDP for GTP would be inhibited.

This means that the signaling pathway would not be properly activated and cell growth and division would also be affected.