Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 2 November 1973:
Vol. 182. no. 4111, pp. 495 - 497
DOI: 10.1126/science.182.4111.495
Prev | Table of Contents | Next

Articles

Limulus Rhodopsin: Rapid Return of Transient Intermediates to the Thermally Stable State

Alan Fein 1 and Richard A. Cone 1

1 Thomas C. Jenkins Department of Biophysics, Johns Hopkins University, Baltimore, Maryland 21218, and Marine Biological Laboratory, Woods Hole, Massachiusetts 02543

Spectral transitions of rhodopsin in single cells of the Limulus ventral eye were observed both with flash photometry and by measuring the early receptor potential. Even with repetitive stimulus flashes the rhodopsin did not bleach; after each flash the spectral intermediates decayed rapidly to the initial thermally stable state. The pigment returns to the stable state in a time comparable with the duration of the late receptor potential.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Localized desensitization of Limulus photoreceptors produced by light or intracellular calcium ion injection.
A Fein and J Lisman (1975)
Science 187, 1094-1096
   Abstract »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)