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Science 19 April 1963:
Vol. 140. no. 3564, pp. 294 - 295
DOI: 10.1126/science.140.3564.294
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Articles

Potentiation by Adrenaline of a Proteolytic Activity Associated with Purified Myosin

Paul Gordon 1 and Radovan Zak 2

1 Institute for Medical Research, Chicago Medical School, Chicago, Illinois
2 Northwestern University Medical School, Chicago

Proteolytic activity accompanies myosin through three reprecipitations. The fact that this activity can be potentiated by very small doses of 1-adrenaline supports the view that adrenaline receptors are protein in nature and that adrenaline-like compounds exert their action through modification of the activity of enzymes.

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