| transducin |
a G protein of the disk membrane of the retinal rods that interacts with activated rhodopsin and participates in the triggering of a nerve impulse in vision; it stimulates hydrolysis of cyclic guanosine monophosphate, beginning the cascade that closes specific ion channels and generates an action potential.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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