DocumentCode :
1826016
Title :
Photoreceptor ion channels reconstituted in bilayer lipid membranes
Author :
Takagi, Masayuki
Author_Institution :
Coll. of Gen. Educ., Osaka Univ., Japan
fYear :
1989
fDate :
9-12 Nov 1989
Firstpage :
1331
Abstract :
Ion channel molecules in octopus photoreceptor cell membranes were reconstituted in bilayer lipid membranes (BLMs) prepared by the modified monolayer-dipping method. Many kinds of single-channel currents (8-500 pS) were recorded in a BLM that contained a microvillus membrane preparation purified by sucrose density gradient centrifugation. In membranes obtained by a novel filter paper method, only the activity of a low conductance ion channel (10-30 pS) was obtained. It is believed that this may by the ion channel that operates as an electric signal generation in the process of transmitting photo-information in the visual cell
Keywords :
biomembrane transport; cellular transport and dynamics; eye; lipid bilayers; electric signal generation; filter paper method; low conductance ion channel; microvillus membrane preparation; modified monolayer-dipping method; octopus photoreceptor cell membranes; photo-information transmission process; sucrose density gradient centrifugation; visual cell; Biomembranes; Cells (biology); Educational institutions; Information filtering; Lipidomics; Photoreceptors; Pigments; Proteins; Signal generators; Sugar;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
Type :
conf
DOI :
10.1109/IEMBS.1989.96223
Filename :
96223
Link To Document :
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