| pubmed-article:7053075 | pubmed:abstractText | The fluorescent dye 3,3'-dipropylthiodicarbocyanin iodide [diS-C3-(5)] is used as a probe of fast membrane potential variations in the study of rod-outer-segment membranes. The formation of metarhodopsin II is found to be associated with the generation of a transmembrane potential, which is dissipitated by ionic movements across the membrane; its risetime is very similar to that of the protonation of the protein, which is also associated with the formation of metarhodopsin II. | lld:pubmed |
