Activation mechanisms of store-operated calcium channels in liver cells. Currently, one of the most active areas of research in biology involves the molecular mechanisms that control the activity of cells. Defining these will provide a deeper understanding of normal function and disease, and provide potential therapeutic targets. This group has an international reputation for its work and it makes a major input to maintaining Australia as a significant contributor to this field. While its resea ....Activation mechanisms of store-operated calcium channels in liver cells. Currently, one of the most active areas of research in biology involves the molecular mechanisms that control the activity of cells. Defining these will provide a deeper understanding of normal function and disease, and provide potential therapeutic targets. This group has an international reputation for its work and it makes a major input to maintaining Australia as a significant contributor to this field. While its research has broad application in biology, its specific focus, calcium signalling in the liver, will provide the basis for understanding liver function and disease and, potentially, for developing new treatments for liver disease associated with abnormal calcium homeostasis.Read moreRead less
Three-dimensional structures, substrate specificities and catalytic mechanisms of polysaccharide synthases. Plant wall polysaccharides are extensively used for food and fibre, and are important dietary components in human nutrition. A precise knowledge of mechanisms used by plants to synthesize these polysaccharides is unavailable, but would reveal potential routes to manipulate their biosynthesis in important crop species. For example, the levels or structures of polysaccharides might be modif ....Three-dimensional structures, substrate specificities and catalytic mechanisms of polysaccharide synthases. Plant wall polysaccharides are extensively used for food and fibre, and are important dietary components in human nutrition. A precise knowledge of mechanisms used by plants to synthesize these polysaccharides is unavailable, but would reveal potential routes to manipulate their biosynthesis in important crop species. For example, the levels or structures of polysaccharides might be modified to improve their efficacy as anti-cancer agents in human diets, to enhance digestibility of animal stock feeds, or to synthesise pharmologically valuable compounds. Thus, economic, social and environmental benefits will flow to both producers and consumers. Read moreRead less
Amino acids as nutrients - the molecular basis of amino acid absorption in kidney and intestine. Nutrition is a critical factor for well being and health. This is highlighted by the increase in frequency of type II diabetes and the obesity problem that all societies with a western diet face. Most studies in nutrition focus on fat and carbohydrates because of their direct involvement in obesity and diabetes. Proteins and the resulting peptides and amino acids, however, form 10-15% of our nutritio ....Amino acids as nutrients - the molecular basis of amino acid absorption in kidney and intestine. Nutrition is a critical factor for well being and health. This is highlighted by the increase in frequency of type II diabetes and the obesity problem that all societies with a western diet face. Most studies in nutrition focus on fat and carbohydrates because of their direct involvement in obesity and diabetes. Proteins and the resulting peptides and amino acids, however, form 10-15% of our nutrition. At a time where protein-rich diets are recommended to fight obesity and diabetes, it is important to understand the basis of protein absorption and metabolism. This project investigates the mechanism and mediators of amino acid absorption in kidney and intestine. Read moreRead less
Structure and function of heterodimeric amino acid transporters. Recently a new family of amino acid transporters has been identified, the members of which are involved in the delivery of amino acids between cells and tissues. All members display a rather unusual structure in that they require two subunits to be functional. The main aim of this study is to investigate the interaction between large and small subunits. The study will give insight how membrane proteins form complexes in the membran ....Structure and function of heterodimeric amino acid transporters. Recently a new family of amino acid transporters has been identified, the members of which are involved in the delivery of amino acids between cells and tissues. All members display a rather unusual structure in that they require two subunits to be functional. The main aim of this study is to investigate the interaction between large and small subunits. The study will give insight how membrane proteins form complexes in the membrane and how these interactions affect the function of a complex membrane protein.Read moreRead less
A new model for secreton in epithelial cells. This proposal sets out to test a new model for secretion that we have developed in the light of recent experimental data. The project outcomes will advance our understanding of normal processes of secretion and may be important in understanding disease. We will develop cutting-edge techniques of microscopy which will place Australia at the forefront of this exciting field. The project will bring benefit to the Australian scientific community through ....A new model for secreton in epithelial cells. This proposal sets out to test a new model for secretion that we have developed in the light of recent experimental data. The project outcomes will advance our understanding of normal processes of secretion and may be important in understanding disease. We will develop cutting-edge techniques of microscopy which will place Australia at the forefront of this exciting field. The project will bring benefit to the Australian scientific community through interactions and collaborations with other scientists in Australia and internationally and will benefit early-career scientists, training them in novel methods and allowing them to develop their research expertise and profile and enabling them to compete on the world science stage. Read moreRead less