The Journal of Experimental Medicine
Cytokines in immune regulation
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The Journal of Experimental Medicine, Vol 102, 435-440, Copyright, 1955, by The Rockefeller Institute for Medical Research New York

ARTICLE

AMINO ACID COMPOSITION AND ELECTROPHORETIC PROPERTIES OF HYPERTENSIN I

Leonard T. Skeggs Jr. Ph.D.1, Walton H. Marsh Ph.D.1, Joseph R. Kahn M.D.1, and Norman P. Shumway M.D.1

1 From the Department of Medicine and Surgery, Veterans Administration Hospital, and the Department of Pathology, Western Reserve University, Cleveland

A preparation of hypertensin I was purified by countercurrent distribution and was shown to migrate as a single component in starch blocks at pH 9.3 and 4.2. It had an isoelectric point of 7.7. Quantitative analysis by ion exchange column chromatography showed eight amino acids in approximately unimolar proportion: aspartic, proline, valine, isoleucine, leucine, tyrosine, phenylalanine, and arginine. There were in addition two moles of histidine.

Submitted on June 17, 1955


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