Affiliation:
1. Department of Medicine and the Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine Baltimore, Maryland 21205
Abstract
Studies with bulky and insoluble insulin derivatives indicate that this hormone can activate various metabolic processes by interaction with cell surface structures. A definition of “receptor” is offered which is operationally useful in studies directed to the identification and purification of receptor structures. Studies are described which measure the specific binding of insulin to intact fat cells and liver and fat cell membranes. The properties of these interactions and the correlation with metabolic events indicate that biologically significant receptors are being studied. The possible contribution of membrane carbohydrates, proteins and lipids to the environment and function of the receptor is considered. Studies pertinent to the extraction and purification of the insulin receptor are discussed.
Publisher
American Diabetes Association
Subject
Endocrinology, Diabetes and Metabolism,Internal Medicine
Cited by
38 articles.
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