Allosteric and Bitopic Ligands Acting at G Protein-Coupled Receptors. This project seeks to gain a more detailed understanding of the mechanisms of the function of G protein-coupled receptors (GPCRs) using novel chemical tools. GPCRs are the largest group of cell surface signalling proteins and are responsible for the regulation of numerous vital physiological functions. They are the target of over 30 per cent of currently used pharmaceuticals. Despite their importance, much remains to be learne ....Allosteric and Bitopic Ligands Acting at G Protein-Coupled Receptors. This project seeks to gain a more detailed understanding of the mechanisms of the function of G protein-coupled receptors (GPCRs) using novel chemical tools. GPCRs are the largest group of cell surface signalling proteins and are responsible for the regulation of numerous vital physiological functions. They are the target of over 30 per cent of currently used pharmaceuticals. Despite their importance, much remains to be learned about the regulation of GPCRs by small molecules. This project aims to address this gap by focusing on novel regions on these proteins, termed allosteric sites, to explore novel modes of GPCR regulation which may offer the potential of identifying pathway selective agents.Read moreRead less
Dissecting a major sulfur cycling pathway: sulfoglycolysis. This project will elucidate the molecular details of sulfoglycolysis, a group of metabolic pathways through which the sulfur-containing sugar sulfoquinovose is catabolized. The project will employ an integrated metabolomic, chemical, biochemical and structural approach to dissect how various sulfoglycolytic organisms degrade sulfoquinovose. This project will deliver a deeper understanding of this major biochemical pathway and develop ne ....Dissecting a major sulfur cycling pathway: sulfoglycolysis. This project will elucidate the molecular details of sulfoglycolysis, a group of metabolic pathways through which the sulfur-containing sugar sulfoquinovose is catabolized. The project will employ an integrated metabolomic, chemical, biochemical and structural approach to dissect how various sulfoglycolytic organisms degrade sulfoquinovose. This project will deliver a deeper understanding of this major biochemical pathway and develop new chemical and metabolic approaches to manipulate sulfur cycling in the environment. Benefits will include biotechnology applications of newly discovered proteins, and sustainable approaches to reduce our dependence on agricultural fertilisers.Read moreRead less
Understanding allosteric modulation and functional selectivity at G Protein-Coupled Receptors (GPCRs). GPCRs are an important superfamily of proteins that are involved in a myriad of physiological processes and a wide range of serious illnesses. This project seeks to gain a more detailed understanding of new mechanisms of GPCR modulation and function that will be of direct relevance to drug discovery.
Dissecting catalysis and inhibition of a unique endo-acting mannose-processing glycosidase. Defects in the attachment of carbohydrates to proteins are a hallmark of diseases such as cancer and viral infection. This project will dissect the molecular details of the bond-making and breaking steps that occur during the synthesis of glycoproteins assisting in the development of innovative new drugs.
Multifunctional biodegradable nanoparticles for enhanced DNA vaccine delivery. DNA vaccine, which shows better immunological and economic merits than conventional vaccines, suffers clinical failure due to the difficulty of delivering intact DNA molecules to relevant cells. This project seeks to develop smart polymer nanospheres to protect the DNA molecules from premature degradation in order to improve its efficacy.
Biogenesis inspired total synthesis of natural products. The project will study the chemical synthesis of a number of novel natural products. Most significantly, this project will deliver new methods for organic synthesis of complex molecules. The rewards from the total synthesis of bioactive compounds are enormous for the community and in the education and training of scientists.
Smart Nanocapsules for Efficient Cellular Delivery of Bioactive Peptide Drugs. This project will bring about practical benefits in terms of developing efficient therapeutic drug delivery systems, which has a market growth estimated to be ca. 23% p.a. in the world. The novel encapsulation technology developed in this project is not only desirable for biomolecules but also applicable for other functional materials and will find wide applications in a number of fields, such as chemical, food proces ....Smart Nanocapsules for Efficient Cellular Delivery of Bioactive Peptide Drugs. This project will bring about practical benefits in terms of developing efficient therapeutic drug delivery systems, which has a market growth estimated to be ca. 23% p.a. in the world. The novel encapsulation technology developed in this project is not only desirable for biomolecules but also applicable for other functional materials and will find wide applications in a number of fields, such as chemical, food processing and cosmetic industries. Successful completion of the project can also strengthen our capacity to participate in new areas of research and positioning Australia at the forefront of bionanotechnology.Read moreRead less
Control of immune recognition and response by microbial metabolites. This project aims to study immune recognition of microbial metabolites and develop reagents to control immune responses. Chemical synthesis will be used to develop new antigens for unconventional T cells and the first soluble agonists and antagonists of a glycolipid-sensing immune receptor. Expected outcomes include the discovery of new immune effectors, broadening our knowledge of the repertoire of small molecules that can be ....Control of immune recognition and response by microbial metabolites. This project aims to study immune recognition of microbial metabolites and develop reagents to control immune responses. Chemical synthesis will be used to develop new antigens for unconventional T cells and the first soluble agonists and antagonists of a glycolipid-sensing immune receptor. Expected outcomes include the discovery of new immune effectors, broadening our knowledge of the repertoire of small molecules that can be sensed by the immune system, and developing chemical approaches to promote or dampen immune responses. Major benefits include research training in chemical biology, strengthened international linkages and fundamental insights into the chemical basis of immune recognition and response.Read moreRead less
Repulsive van der Waals forces and Brownian ratchet motors: manipulating thermal and quantum Fluctuations. A fundamental problem with miniaturizing machines and mechanical devices below the micron scale is the issue of friction and lubrication. One way to completely circumvent the need for lubrication is to use a little-studied phenomenon known as 'repulsive van der Waals forces', to create materials that fundamentally repel each other in certain fluid environments. This effect is very large at ....Repulsive van der Waals forces and Brownian ratchet motors: manipulating thermal and quantum Fluctuations. A fundamental problem with miniaturizing machines and mechanical devices below the micron scale is the issue of friction and lubrication. One way to completely circumvent the need for lubrication is to use a little-studied phenomenon known as 'repulsive van der Waals forces', to create materials that fundamentally repel each other in certain fluid environments. This effect is very large at the nanoscale and this proposal examines how such forces can be used to make 'lubricant free' motors and nanomachines. This will open up the possibility of building small and portable sensors, actuators, microfluidic devices and eventually active drug delivery systems for health applications.Read moreRead less
Controlling Anisotropic Growth of Metal Oxide Crystals in Aqueous Solution by Selective Adsorption of Small Molecules. The proposed research will enhance our ability to make both light emitting diodes (LEDs) and piezoelectric actuators from ZnO. LEDs are a high efficiency light source that save energy compared to conventional illumination sources and can be fabricated in thin films. The proposal is to also bring the technology for device fabrication to Australia where it can ultimately be used ....Controlling Anisotropic Growth of Metal Oxide Crystals in Aqueous Solution by Selective Adsorption of Small Molecules. The proposed research will enhance our ability to make both light emitting diodes (LEDs) and piezoelectric actuators from ZnO. LEDs are a high efficiency light source that save energy compared to conventional illumination sources and can be fabricated in thin films. The proposal is to also bring the technology for device fabrication to Australia where it can ultimately be used to broaden the economic base of the country. The knowledge of crystal growth rate and crystal morphology control can be applied to improvements in the efficiency of alumina production which is already an important contributor to Australian exports.Read moreRead less