Structure and activity of host-defence peptides from Australian anurans: anticancer agents, neuropeptides and nNOS inhibitors. We have discovered peptides that may have clinical applications. This is significant as these molecules may have one or more of the following properties. They may have anti-cancer effects; they may increase the effectiveness of the immune system by enhancing lymphocyte formation; and, they may act to reduce inflammation, stroke or cardiac conditions by controlling nitri ....Structure and activity of host-defence peptides from Australian anurans: anticancer agents, neuropeptides and nNOS inhibitors. We have discovered peptides that may have clinical applications. This is significant as these molecules may have one or more of the following properties. They may have anti-cancer effects; they may increase the effectiveness of the immune system by enhancing lymphocyte formation; and, they may act to reduce inflammation, stroke or cardiac conditions by controlling nitric oxide formation. Another national benefit is that personnel involved in this project are trained to the highest international standards in peptide chemistry/mass spectrometry/nuclear magnetic resonance: currently, there are not enough trained scientists in this area to meet demand.Read moreRead less
Biologically active peptides and proteins from anurans: the relationship between structure and activity. We have identified peptides (from glands of frogs and toads), some of which are amongst the most powerful biologically active compounds in the animal kingdom. The aims of this project are to investigate the relationship between the structure and bioactivity of chosen groups of peptides including pheromones, anticancer and antibiotic peptides, and peptides which inhibit neuronal nitric oxide ....Biologically active peptides and proteins from anurans: the relationship between structure and activity. We have identified peptides (from glands of frogs and toads), some of which are amongst the most powerful biologically active compounds in the animal kingdom. The aims of this project are to investigate the relationship between the structure and bioactivity of chosen groups of peptides including pheromones, anticancer and antibiotic peptides, and peptides which inhibit neuronal nitric oxide synthase. It would be of national benefit if any of these peptides have applied application, e.g. if we can use the sex pheromone of the cane toad to reduce its population, or if we can produce an anticancer active peptide of clinical applicability.Read moreRead less
Mycobacterial Cholesterol Degradation: A Unique Metabolic Weakness? This project aims to understand the use of the steroid cholesterol as a source of essential metabolic building blocks by bacteria. Cholesterol utilisation is a key feature of many bacterial pathogens which have evolved to survive in niche environments. By understanding the initial step in cholesterol degradation and the bioinorganic and bioorganic chemistry of the metalloenzymes that catalyse it, this work aims to develop strate ....Mycobacterial Cholesterol Degradation: A Unique Metabolic Weakness? This project aims to understand the use of the steroid cholesterol as a source of essential metabolic building blocks by bacteria. Cholesterol utilisation is a key feature of many bacterial pathogens which have evolved to survive in niche environments. By understanding the initial step in cholesterol degradation and the bioinorganic and bioorganic chemistry of the metalloenzymes that catalyse it, this work aims to develop strategies to block this activity. This will turn a key strength of these bacteria into a potent weakness and will generate the proof of principle and knowledge required for the future development of effective strategies to combat pathogenic bacteria.Read moreRead less
Electron transfer in proteins, a study of mechanism and function. Our research will probe the mechanisms by which nature's living systems build, maintain, and reproduce. We present an ability to understand these processes at a detailed molecular level using science and technology at the forefront of multidisciplinary research. The research will provide a foundation for new smart materials, technologies and future industries, and also ways forward for future basic scientific research and endeavo ....Electron transfer in proteins, a study of mechanism and function. Our research will probe the mechanisms by which nature's living systems build, maintain, and reproduce. We present an ability to understand these processes at a detailed molecular level using science and technology at the forefront of multidisciplinary research. The research will provide a foundation for new smart materials, technologies and future industries, and also ways forward for future basic scientific research and endeavor. All this is done with the best international researchers and capabilities within a local environment that will help to train the next generation of Australian scientists.Read moreRead less
Mimicking peptide structure - towards an aqueous environment. In this proposal we develop a fundamental understanding of the balance between 'weak' and 'strong' forces to define the properties of peptides and proteins. This will allow the design of new biological probes and materials with tailor-made chemical and physical properties for use in bioengineering, biotechnology, proteomics, and drug design. One such example is the design and preparation of a new chemical agent for the non-surgical tr ....Mimicking peptide structure - towards an aqueous environment. In this proposal we develop a fundamental understanding of the balance between 'weak' and 'strong' forces to define the properties of peptides and proteins. This will allow the design of new biological probes and materials with tailor-made chemical and physical properties for use in bioengineering, biotechnology, proteomics, and drug design. One such example is the design and preparation of a new chemical agent for the non-surgical treatment for cataract, the major cause of blindness world-wide.Read moreRead less
Large Scale Production of Stemona Alkaloids for Agricultural Applications and New Drug Discovery. The Stemona alkaloids form a large group of natural products that have significant potential as agricultural and pharmaceutical drugs. Extracts of these natural products have many applications in traditional medicine and as insecticides in Asia. We propose to develop innovative methods for the large scale production and synthesis of these bioactive alkaloids. The methodology and products developed ....Large Scale Production of Stemona Alkaloids for Agricultural Applications and New Drug Discovery. The Stemona alkaloids form a large group of natural products that have significant potential as agricultural and pharmaceutical drugs. Extracts of these natural products have many applications in traditional medicine and as insecticides in Asia. We propose to develop innovative methods for the large scale production and synthesis of these bioactive alkaloids. The methodology and products developed may have potential pharmaceutical and agricultural applications from which the country could benefit in the future. This project would help develop skilled people who may produce innovative outcomes in the future, especially in the developing pharmaceutical and biotechnology industries in Australia.Read moreRead less
Bio-inspired molecular electronics: from nanoscience to nanotechnology. This project aims to investigate electron transport in naturally occurring peptides, while exploiting their electronic properties to promote the design and development of functional bio-inspired molecular electronic devices. Molecular electronics is at the forefront of international interdisciplinary research, with its significance and necessity stemming from the inevitable physical limitations of existing silicon-based elec ....Bio-inspired molecular electronics: from nanoscience to nanotechnology. This project aims to investigate electron transport in naturally occurring peptides, while exploiting their electronic properties to promote the design and development of functional bio-inspired molecular electronic devices. Molecular electronics is at the forefront of international interdisciplinary research, with its significance and necessity stemming from the inevitable physical limitations of existing silicon-based electronics. This project aims to establish a foundation to advance fundamental knowledge in this area, which will lead to the design and development of functional bio-inspired molecular electronic devices.Read moreRead less
Site-specific protein functionalisation at diselenides via photocatalysis . This project aims to develop a new photocatalytic reaction for the on demand functionalisation of proteins. The synthetic methodology will solve a major technological gap in the field by enabling efficient access to proteins with defined modifications at specific locations. Functionalised proteins generated in the project will underpin a detailed understanding of how specific modifications influence the structure and fun ....Site-specific protein functionalisation at diselenides via photocatalysis . This project aims to develop a new photocatalytic reaction for the on demand functionalisation of proteins. The synthetic methodology will solve a major technological gap in the field by enabling efficient access to proteins with defined modifications at specific locations. Functionalised proteins generated in the project will underpin a detailed understanding of how specific modifications influence the structure and function of several important proteins. The project will generate significant new knowledge in the fields of chemistry and biology and will foster interdisciplinary collaboration, nationally and internationally. The breakthrough technology also has the potential to benefit Australia’s biotechnology sector.Read moreRead less
A Tough Resilin Based Hydrogel Platform for Repair and Regeneration. This project seeks to develop novel hydrogels that mimic the properties of the body. In the field of repair and regeneration, our challenge is to make hydrogels that retain the fatigue and resilience properties of the natural body part, but are comprised of nontoxic material. Resilin is a remarkable material exhibiting a broad range of stimuli-responsive behaviour and outstanding elasticity. The project aim is to create a tough ....A Tough Resilin Based Hydrogel Platform for Repair and Regeneration. This project seeks to develop novel hydrogels that mimic the properties of the body. In the field of repair and regeneration, our challenge is to make hydrogels that retain the fatigue and resilience properties of the natural body part, but are comprised of nontoxic material. Resilin is a remarkable material exhibiting a broad range of stimuli-responsive behaviour and outstanding elasticity. The project aim is to create a tough and responsive hydrogel platform from this disordered protein family through greater understanding of structure and mechanical function and incorporating adequate stiffness, strength and biocompatibility. Such tough hydrogels would be applicable to a range of biotechnological applications (eg intervertebral disc repair or artificial skin tissue engineering).Read moreRead less
Characterisation of the beneficial vs toxic forms of selenium in the diet. This project aims to examine how dietary selenium is converted into essential proteins and beneficial compounds that mitigate against a broad range of human diseases; or alternatively, into toxic molecules. Cutting-edge methodologies should resolve significant unknowns in selenium metabolism, to provide definitive dietary guidelines and to explore how selenium can treat and protect against disease. Expected outcomes from ....Characterisation of the beneficial vs toxic forms of selenium in the diet. This project aims to examine how dietary selenium is converted into essential proteins and beneficial compounds that mitigate against a broad range of human diseases; or alternatively, into toxic molecules. Cutting-edge methodologies should resolve significant unknowns in selenium metabolism, to provide definitive dietary guidelines and to explore how selenium can treat and protect against disease. Expected outcomes from this national and international collaboration include expert training for young biochemical researchers and refinements to novel analytical techniques. Results should benefit the food and agricultural sectors to provide tailored products locally and for export, as well as enhanced health opportunities for all Australians.Read moreRead less