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The ecdysone-inducible E75 gene responsible for the 75B puff of Drosophila melanogaster encodes a family of proteins which are members of the steroid receptor superfamily. These proteins are believed to be involved in the regulation of ecdysone response. In order to investigate the evolutionary conservation of E75, we have identified the E75 gene of Manduca(More)
Insulin binding to the insulin receptor initiates a cascade of cellular events that are responsible for regulating cell metabolism, proliferation, and growth. We have investigated the structure of the purified, functionally active, human insulin receptor using negative stain and cryo-electron microscopy. Visualization of the detergent-solubilized and(More)
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