Current Topics in Cellular Regulation

Current Topics in Cellular Regulation: Volume 29 is a collection of papers that deals with dynamic macromolecular interactions, ligand binding, multi-enzyme complex formation, the regulation of fatty acid uptake, and synthesis in mammary or adipose tissues. Other papers explain the functional relationships of guanosine triphosphate binding proteins, the glycogen storage disease, the regulation of the pentose phosphate pathway in the brain, as well as the regulation of carotenoid biosynthesis. One paper discusses the dissociable enzyme complexes stabilized by weak interactions, particularly on the interaction of cytosolic enzymes with the contractile apparatus, with membranes, or with functionally related enzymes. Another paper investigates the mechanism of acute regulation, in mammary epithelial cells, of the processes which collaborate to supply fatty acids for esterification to form glycerolipids (which is predominantly triacylglycerol). Glycerolipids comprise mostly the total lipid content of the secretory product of those cells—mammalian milk. The paper notes that a counter-regulatory hormone collaborating with insulin in the regulation of lipid metabolism in the lactating mammary cell, does not act via cyclic AMP. The collection can prove beneficial for biochemists, micro-biologists, bio-physicists, cellular researchers, and academicians involved in the study of cellular biology or physiology.