Read e-book online Cellular Regulation of Secretion and Release PDF

By P. Michael Conn

ISBN-10: 0121850587

ISBN-13: 9780121850586

Mobile rules of Secretion and unlock is a compilation of papers that offers with the tactics in mobile conception of stimuli and the reaction to them. half I describes the receptor occupancy and rules of stimulus by utilizing video photo intensification recommendations. This half additionally explains a version for the transmembrane rules of adenylate cyclase that exhibits the mechanisms that cells use in sensing and responding to extracellular stipulations. half II discusses the early responses of secretory cells together with adjustments in phospholipid metabolism, in electrophysiological occasions, and in macromolecular carboxymethylation. One paper means that protein-carboxyl methylase has a task in neurotransmission and secretion no matter if as part of the exocytotic approach or simply a support to manage the method. half III addresses the function in secretion of the subcellular structure relatively as regards the function of the cytoskeleton in endocrine functionality or insulin secretion and cytoskeletal proteins. half IV discusses the synthesis, processing, and garage of secretory items, together with the function of sign peptides, their homes, and interactions. half V addresses the mechanisms and modulation of secretion and liberate in a learn of Leydig cells. One paper concludes that the legislation of unencumber, via dopamine and TRH elements, could have a couple of mechanism of motion. This ebook may be priceless for mobile microbiologists, bacteriologists, endocrinologists, researchers, and academicians within the biochemistry and in reproductive medication.

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RECONSTITUTION Developing a detailed picture of the mechanism of stimulation of adenylate cyclase by hormones will require purification of each component and then reconstitution of functional interactions among them. Although this goal remains to be attained, significant progress has been made, and more importantly, these efforts have provided valuable insight into individual steps in the hormone-induced interactions of receptor, guanine nucleotide regulatory protein, and catalytic unit. 40 Margaret M.

Chem. 254, 4596-4601. , and Levitzki, A. (1978). Tentative identification of beta-adrenoreceptor subunits. Nature (London) 272, 3 7 0 - 3 7 1 . 44 Margaret M. Briggs and Robert J. Lefkowitz Aurbach, G. , Sedak, S. , Woodard, C. , Palmer, J. , and Troxler, F. (1974). Beta-adrenergic receptor: Stereospecific interaction of iodinated beta-blocking agent with high affinity site. Science 186, 1223-1224. , Galla, H. , and Helmreich, E. J. M. (1979). Modulation of the betareceptor adenylate cyclase interactions in cultured Chang liver cells by phospholipid enrichment.

Radioactively labeled adrenergic agonists and antagonists, which stimulate or block stimulation of adenylate cyclase, respectively, have been used to bind to membrane-associated sites t h a t show the characteristics expected of the physiologically relevant receptors. An important criterion is that the binding sites should exhibit the specificity and stereospecificity characteristic of the ß-adrenergic response. The order of potency of agonists or antagonists in binding to receptor sites should correlate well with the order of potency in either stimulating or blocking stimulation of adenylate cyclase activity.

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Cellular Regulation of Secretion and Release by P. Michael Conn


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