試題詳解

24. Proteins may non-covalently interact with small molecules such as GTP, , etc. Which of the following statement is/are NOT correct?
(A) after first oxygen binding, hemoglobulin adapts a new conformation and could interact the second oxygen molecule better
(B) neurotransmitter glutamate triggers calcium influx by non-covalently binding to calcium channel on the post-synaptic membrane.
(C) facilitates the hemophilic interaction between E-cadherin
(D) binding to either GTP or GDP activates small G protein, such as Ras.
(E) when cellular ATP level is high, excessive ATP non-covalently binds to and inhibits pyruvate kinase, which mediates glycolysis and ATP production