Functional localization of soluble guanylate cyclase in turtle retina: modulation of cGMP by nitric oxide donors.


The second messenger cyclic guanosine monophosphate (cGMP) plays a role in many aspects of retinal processing. cGMP-gated channels function in photoreceptors, Müller, bipolar, and ganglion cells; and cGMP can modulate gap-junction conductivity. In the inner retina, both particulate and soluble guanylate cyclases can elevate levels of cGMP. The soluble… (More)


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