What the function of CalX in the phototranscuction cascade : 345270
What is the function of CalX in the phototranscuction cascade within Drosophila photoreceptors?
A. CalX is the messenger protein that when activated leads to the opening of ion channels
B. CalX activity leads to Ca being transported out of the cell, counterbalancing Ca influx
C. CalX is a Na/Ca exchanger pump
D. CalX is a ion channel that becomes passively permeable to Ca and Na when opened