PMID: 6113877Jun 1, 1981Paper

The neuropeptide proctolin acts directly on Limulus cardiac muscle to increase the amplitude of contraction

Brain Research
J A BensonG J Augustine

Abstract

The pentapeptide proctolin increases the amplitude of contraction but not heart beat frequency of the isolated heart of Limulus polyphemus. It acts directly on the heart muscle and has no effects on the neurones of the cardiac ganglion or on the cardiac neuromuscular EJPs. A peptide with molecular weight, enzymatic susceptibilities and physiological effects similar to those of proctolin occurs in the Limulus cardiac ganglion. It is suggested that proctolin, or a family of proctolin-like peptides, may modulate muscle contraction in more than one subphylum of the Arthropoda.

References

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Citations

Aug 1, 1994·Comparative Biochemistry and Physiology. Comparative Physiology·F Goudey-PerrièreP Brousse-Gaury
May 1, 1995·Comparative Biochemistry and Physiology. Part A, Physiology·B D FordJ G Townsel
Mar 23, 1984·Neuroscience Letters·H G BernsteinA Dorn
Jan 1, 1982·Comparative Biochemistry and Physiology. C: Comparative Pharmacology·R J Walker, C J Roberts
Sep 1, 1981·Proceedings of the National Academy of Sciences of the United States of America·C A BishopR J Miller
Sep 27, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Sodikdjon A KodirovVladimir L Zhuravlev
Jan 1, 1982·Journal of Neurobiology·G J AugustineW H Watson
Nov 6, 2015·Journal of Neurophysiology·Kiel G OrmerodA Joffre Mercier
Jul 1, 1989·Journal of Neurobiology·I OrchardA B Lange
Feb 6, 1984·Life Sciences·G B QuistadD A Schooley
Jan 22, 1986·The Journal of Comparative Neurology·K K Siwicki, C A Bishop
Feb 15, 1985·The Journal of Comparative Neurology·C Li, R L Calabrese
May 1, 1984·Journal of Neurobiology·R E Sullivan, M W Miller
May 1, 1984·Journal of Neurobiology·S G RaneG A Wyse

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