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  Sensitizing pigment in the fly

Vogt, K., & Kirschfeld, K. (1983). Sensitizing pigment in the fly. Biophysics of Structure and Mechanisms, 9(4), 319-328. doi:10.1007/BF00535667.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-F081-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-088F-1
Genre: Journal Article

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Vogt, K1, 2, Author              
Kirschfeld, K1, 2, Author              
Affiliations:
1Former Department Comparative Neurobiology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497800              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: The sensitizing pigment hypothesis for the high UV sensitivity in fly photoreceptors (R1–6) is further substantiated by measurements of the polarisation sensitivity in the UV. The quantum yield of the energy transfer from sensitizing pigment to rhodopsin was estimated by electrophysiological measurements of the UV sensitivity and the rhabdomeric absorptance (at 490 nm) in individual receptor cells. The transfer efficiency is ≥ 0.75 in receptors with an absorptance in the rhabdomeres of 0.55–0.95. This result suggests that the sensitizing pigment is bound in some way to the rhodopsin. A ratio of two molecules of sensitizing pigment per one rhodopsin is proposed.

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 Dates: 1983-12
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: 3747
DOI: 10.1007/BF00535667
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Title: Biophysics of Structure and Mechanisms
Source Genre: Journal
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Pages: - Volume / Issue: 9 (4) Sequence Number: - Start / End Page: 319 - 328 Identifier: -