Understanding mechanistic and systemic regulation of protein prenyltransferases. The proposed research will expand our understanding of lipid-conjugating enzymes that are critical for a multitude of normal cellular functions. We seek to reveal the basic workings of cells and help to explain the development and complexity of signalling networks in eukaryotic evolution. The findings will enable us to explore and exploit the catalytic properties of these lipid-related enzymes for applications in bi ....Understanding mechanistic and systemic regulation of protein prenyltransferases. The proposed research will expand our understanding of lipid-conjugating enzymes that are critical for a multitude of normal cellular functions. We seek to reveal the basic workings of cells and help to explain the development and complexity of signalling networks in eukaryotic evolution. The findings will enable us to explore and exploit the catalytic properties of these lipid-related enzymes for applications in biotechnology. The ultimate aim is to create novel technologies for protein production, modification and analysis that will accelerate the pace of discovery in protein research, basic cell and organism biology, diagnostics, biotechnology and drug discovery. Read moreRead less
BIOCATALYSTS MINED FROM CYTOCHROME P450 LIBRARIES: AN INNOVATIVE TOOL FOR ACCELERATING DRUG DEVELOPMENT. The cytochrome P450s (P450s) are a family of enzymes that are perhaps the most versatile biological catalysts known. DNA shuffling is an emerging technique that takes the genes encoding families of enzymes and creates libraries of catalysts with both improved and novel properties. We will obtain proof of concept that shuffled P450 libraries can be screened and optimized for use as biocatalys ....BIOCATALYSTS MINED FROM CYTOCHROME P450 LIBRARIES: AN INNOVATIVE TOOL FOR ACCELERATING DRUG DEVELOPMENT. The cytochrome P450s (P450s) are a family of enzymes that are perhaps the most versatile biological catalysts known. DNA shuffling is an emerging technique that takes the genes encoding families of enzymes and creates libraries of catalysts with both improved and novel properties. We will obtain proof of concept that shuffled P450 libraries can be screened and optimized for use as biocatalysts in drug development. The methodologies developed here will overcome two critical bottlenecks in current drug development: the optimisation and metabolic profiling of new drug candidates. This will yield important benefits in accelerating the optimisation and safety testing of drugs under development.Read moreRead less
Pre-clinical evaluation of snake venom proteins with therapeutic potential. Australia harbors some of the most toxic snakes in the world. Their venoms contain a range of substances that are designed to rapidly immobilize and kill their prey. These include agents that lead to enhanced blood clotting; excess bleeding. We have isolated and characterized a large number of the components involved over the last several years. The aim here is to carry out pre-clinical trials in animal models to test th ....Pre-clinical evaluation of snake venom proteins with therapeutic potential. Australia harbors some of the most toxic snakes in the world. Their venoms contain a range of substances that are designed to rapidly immobilize and kill their prey. These include agents that lead to enhanced blood clotting; excess bleeding. We have isolated and characterized a large number of the components involved over the last several years. The aim here is to carry out pre-clinical trials in animal models to test the efficacy of three proteins as anti-bleeding agents and investigate several other novel components. The ultimate outcome will be the development of novel drugs that will have application in the treatment of human disorders. Read moreRead less
MOLECULAR BREEDING OF CYTOCHROME P450 ENZYMES. Cytochrome P450s are enzymes that catalyse an impressive array of oxidative transformations. However, there is little available data on how to modify their substrate specificity and generate tailored biocatalysts. We plan to use an emerging technology known as DNA shuffling to create libraries of P450s with varying activities. These will then be screened for enzymes that can catalyse the formation of indigo (a blue dye) and indirubin (a chemother ....MOLECULAR BREEDING OF CYTOCHROME P450 ENZYMES. Cytochrome P450s are enzymes that catalyse an impressive array of oxidative transformations. However, there is little available data on how to modify their substrate specificity and generate tailored biocatalysts. We plan to use an emerging technology known as DNA shuffling to create libraries of P450s with varying activities. These will then be screened for enzymes that can catalyse the formation of indigo (a blue dye) and indirubin (a chemotherapeutic agent). The enzymes that catalyse indigo formation will be useful in the production of coloured transgenic plants and those that produce indirubin will have a role in gene therapy.Read moreRead less
Metabolic engineering of sugarcane: production of a biodegradable bioplastic as a test-case. The aim of this project is to produce a commercially valuable bioplastic called PHB in transgenic sugarcane. This bioplastic has similar properties to petrochemically produced polypropylene, but is fully biodegradable. PHB has been produced in the model plant Arabidopsis thaliana at commercially viable levels. The expected outcome of high-level production of PHB in sugarcane would have significant ben ....Metabolic engineering of sugarcane: production of a biodegradable bioplastic as a test-case. The aim of this project is to produce a commercially valuable bioplastic called PHB in transgenic sugarcane. This bioplastic has similar properties to petrochemically produced polypropylene, but is fully biodegradable. PHB has been produced in the model plant Arabidopsis thaliana at commercially viable levels. The expected outcome of high-level production of PHB in sugarcane would have significant benefits to the Australian sugar industry, the rural economy, and the Australian environment.Read moreRead less
Tailored Biodegradable Polymers for Injection Moulding Applications. This project aims to engineer and scale up production of biodegradable injection molded products with tailored properties, processing and biodegradation. Specifically we will focus on novel materials and processing technologies in tandem with biodegradation understandings to expand the utilization of starch-based polymers. We will then combine fundamental rheological and polymer processing skills with and product development ex ....Tailored Biodegradable Polymers for Injection Moulding Applications. This project aims to engineer and scale up production of biodegradable injection molded products with tailored properties, processing and biodegradation. Specifically we will focus on novel materials and processing technologies in tandem with biodegradation understandings to expand the utilization of starch-based polymers. We will then combine fundamental rheological and polymer processing skills with and product development experience from both universities and the industrial partner (Plantic Technologies) to scale up processing and develop successful biodegradable products. This project will also enable an Australian owned start-up company with a broad shareholder base to generate significant export income through key commercialization.Read moreRead less
Venomics: Molecular and functional analysis of Australian snake venoms for development of human therapeutics. Australian snake venoms are lethal cocktails with potent effects on mammalian physiological processes, designed to immobilize and kill prey animals. Major targets of venom components are the nervous and blood coagulation systems but there is reason to believe that venoms have many other as yet unrecognized effects on mammalian systems. The project will combine techniques of modern mole ....Venomics: Molecular and functional analysis of Australian snake venoms for development of human therapeutics. Australian snake venoms are lethal cocktails with potent effects on mammalian physiological processes, designed to immobilize and kill prey animals. Major targets of venom components are the nervous and blood coagulation systems but there is reason to believe that venoms have many other as yet unrecognized effects on mammalian systems. The project will combine techniques of modern molecular biology (particularly transcriptomics and proteomics) with functional and structural analysis of purified venom components. Venoms from approximately 20 Australian snakes will be studied to reveal lead compounds for improved human pharmaceuticals against common disorders such as high blood pressure, bleeding and stroke.Read moreRead less
Clean fuels for the future: Scale up and optimisation of microalgal oil production and biodiesel synthesis. The development of renewable carbon-neutral fuels is an urgent challenge facing our society. This project aims to develop an innovative system for biodiesel production from local Australian algae species. If cultivated under the right conditions, microalgae are very efficient near-continuous producers of biodiesel and are likely the only renewable source of fuel that could match our curren ....Clean fuels for the future: Scale up and optimisation of microalgal oil production and biodiesel synthesis. The development of renewable carbon-neutral fuels is an urgent challenge facing our society. This project aims to develop an innovative system for biodiesel production from local Australian algae species. If cultivated under the right conditions, microalgae are very efficient near-continuous producers of biodiesel and are likely the only renewable source of fuel that could match our current and future demand without competing for arable land and food production. Such systems couple the national/community benefits of energy generation, carbon-capture, biodiesel production and the clean-up of wastewater. Successful outcomes from this project will bring this innovative technology closer to commercial reality. Read moreRead less
Second generation biofuels: developing environmentally friendly high-efficiency microalgae for biofuel production. The development of CO2-neutral (biodiesel) and CO2-free (hydrogen) fuels is an urgent challenge facing our society to combat climate change and protect against oil price shocks. Successful outcomes from this project will bring this innovative technology closer to commercial reality. The solar-powered microalgal systems being developed, offer a number of national/community benefits ....Second generation biofuels: developing environmentally friendly high-efficiency microalgae for biofuel production. The development of CO2-neutral (biodiesel) and CO2-free (hydrogen) fuels is an urgent challenge facing our society to combat climate change and protect against oil price shocks. Successful outcomes from this project will bring this innovative technology closer to commercial reality. The solar-powered microalgal systems being developed, offer a number of national/community benefits including
1. A high-efficiency frontier-technology for clean fuel production for the Australian and international market
2. A new process to desalinate water
3. Frontier technology to sequester atmospheric CO2
4. Frontier technologies for wealth generation in drought- or salinity-affected and naturally arid regionsRead moreRead less
Organophosphate pesticide degradation: evolved enzymes and biomimetics for bioremediation and medicine. Organophosphate (OP) pesticides are an indispensable part of modern agriculture - their use results in dramatically increased crop yields. However, they are toxic and can damage the environment and cause significant health problems. Enzymes are currently being used to treat runoff water that is contaminated with OPs. The same enzymes also have the potential to aid in the treatment of OP poison ....Organophosphate pesticide degradation: evolved enzymes and biomimetics for bioremediation and medicine. Organophosphate (OP) pesticides are an indispensable part of modern agriculture - their use results in dramatically increased crop yields. However, they are toxic and can damage the environment and cause significant health problems. Enzymes are currently being used to treat runoff water that is contaminated with OPs. The same enzymes also have the potential to aid in the treatment of OP poisoning. However, OP degrading enzymes could be improved in many ways - we will evolve these enzymes to enhance their catalytic properties - to enable them to act more efficiently on an increased number of OPs. Read moreRead less