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Science 1 May 1981:
Vol. 212. no. 4494, pp. 555 - 557
DOI: 10.1126/science.6782676
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Articles

Science, Vol 212, Issue 4494, 555-557
Copyright © 1981 by American Association for the Advancement of Science

articles

Excitation of Limulus photoreceptors by vanadate and by a hydrolysis-resistant analog of guanosine triphosphate

A Fein and DW Corson

Discrete voltage fluctuations that occur spontaneously or in response to dim lights can be recorded from the ventral photoreceptors of Limulus. The injection of vanadate or the hydrolysis-resistant analog of guanosine triphosphate, GTP-gamma-S, into ventral photoreceptors induces the production of discrete waves in the dark. The chemically induced discrete waves are similar to those induced by light. Ventral photoreceptors may contain a guanyl nucleotide binding protein whose activation by vanadate or GTP-gamma-S induces the discrete waves.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Protein Kinase C Activators Inhibit the Visual Cascade in Limulus Ventral Photoreceptors at an Early Stage.
A. Dabdoub and R. Payne (1999)
J. Neurosci. 19, 10262-10269
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Ca2+/calmodulin-binding peptides block phototransduction in Limulus ventral photoreceptors: Evidence for direct inhibition of phospholipase C.
E. A. Richard, S. Ghosh, J. M. Lowenstein, and J. E. Lisman (1997)
PNAS 94, 14095-14099
   Abstract »    Full Text »    PDF »
Purification, Characterization, and Partial Amino Acid Sequence of a G Protein-activated Phospholipase C from Squid Photoreceptors.
J. Mitchell, J. Gutierrez, and J. K. Northup (1995)
J. Biol. Chem. 270, 854-859
   Abstract »    Full Text »    PDF »
Blockade of visual excitation and adaptation in Limulus photoreceptor by GDP-beta-S.
A Fein (1986)
Science 232, 1543-1545
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