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Science 31 July 1981:
Vol. 213. no. 4507, pp. 567 - 569
DOI: 10.1126/science.6113690
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Articles

Science, Vol 213, Issue 4507, 567-569
Copyright © 1981 by American Association for the Advancement of Science

articles

Pentapeptide (proctolin) associated with an identified neuron

M O'Shea and ME Adams

Individual neurons can be recognized and identified anatomically, physiologically, and biochemically in the insect central nervous system. Biochemical analyses of extracts prepared from one such identified neuron show it to be associated with a bioactive pentapeptide called proctolin. This peptide may be a neurotransmitter, and a preparation is established in which its physiological action can be studied at the cellular level.


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Peptide cotransmitter at a neuromuscular junction.
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