Unravelling transthyretin amyloid, bounding ahead using wallabies. Each protein in our body has a unique shape that enables it to function correctly. For unknown reasons, some proteins can change their shape, aggregate with other proteins and stick to the outside of cells of major organs or nerves. This prevents those cells from working properly and results in disease. Transthyretin is a protein that changes shape and aggregates in the heart of most people over the age of 70. The disease is call ....Unravelling transthyretin amyloid, bounding ahead using wallabies. Each protein in our body has a unique shape that enables it to function correctly. For unknown reasons, some proteins can change their shape, aggregate with other proteins and stick to the outside of cells of major organs or nerves. This prevents those cells from working properly and results in disease. Transthyretin is a protein that changes shape and aggregates in the heart of most people over the age of 70. The disease is called Senile Systemic Amyloidosis (SSA). It is not known how or why this happens. There is no cure or therapy. This project will use transthyretins from human and wallaby to explore a possible cause of SSA. If our hypothesis is correct, we will propose preventative actions to reduce the incidence of SSA in the future.Read moreRead less
Structure and temperature adaptation of chaperonin TF55 from Sulfolobus solfataricus. Our work has future potential both for biotechnology and for medical therapies. The cages formed by chaperonin subunits and their ability to bind to specific targets could lead to their application as nano-vesicles, could facilitate expression of eukaryotic proteins in bacteria and could help to prevent or dissolve protein aggregates. With Australia's ageing population, we can expect an increasing prevalence of ....Structure and temperature adaptation of chaperonin TF55 from Sulfolobus solfataricus. Our work has future potential both for biotechnology and for medical therapies. The cages formed by chaperonin subunits and their ability to bind to specific targets could lead to their application as nano-vesicles, could facilitate expression of eukaryotic proteins in bacteria and could help to prevent or dissolve protein aggregates. With Australia's ageing population, we can expect an increasing prevalence of pathologies such as Alzheimer's and Parkinson's disease and other diseases that arise from protein mis-folding and aggregation, including myopathies and cataracts. A participation of chaperonins has been implicated in these age-related diseases and demands detailed structural and functional investigations.Read moreRead less
Remodelling encapsulin nanocages to help enhance plant carbon fixation. Nature has evolved mechanisms in microbial systems to improve photosynthetic efficiency by saturating the enzyme Rubisco with carbon dioxide. These carbon concentrating mechanisms are genetically complex, precluding successful introduction into crops. Our simpler approach is to use encapsulins, a new source of robust bacterial pore-containing nanocages made from a single gene. This project will optimise the development of sy ....Remodelling encapsulin nanocages to help enhance plant carbon fixation. Nature has evolved mechanisms in microbial systems to improve photosynthetic efficiency by saturating the enzyme Rubisco with carbon dioxide. These carbon concentrating mechanisms are genetically complex, precluding successful introduction into crops. Our simpler approach is to use encapsulins, a new source of robust bacterial pore-containing nanocages made from a single gene. This project will optimise the development of synthetic encapsulin-Rubisco carbon-fixing nanoreactors and transform them into leaf chloroplasts to test their impact on plant photosynthesis and growth. Our genetically simpler solution will aid ongoing global efforts to deliver overdue step change improvements in agricultural productivity.Read moreRead less
Molecular toxinology of Australia's lesser known venomous snakes. This proposal represents a tremendous opportunity for biodiscovery from venomous snakes. This will be achieved through the researchers' unique approach of investigating previously unmapped venom systems for divergent, bioactive proteins. An understanding of venomous animal protein evolution great potential in drug discovery and other commercial applications. This project will provide Australian graduate and post-graduate stude ....Molecular toxinology of Australia's lesser known venomous snakes. This proposal represents a tremendous opportunity for biodiscovery from venomous snakes. This will be achieved through the researchers' unique approach of investigating previously unmapped venom systems for divergent, bioactive proteins. An understanding of venomous animal protein evolution great potential in drug discovery and other commercial applications. This project will provide Australian graduate and post-graduate students with finely tuned skills in cutting edge methodological techniques and a fluent understanding of molecular evolution, preparing them to be internationally competitive scientists.Read moreRead less
IDENTIFYING CONTROL ELEMENTS IN CHLOROPLAST GENE EXPRESSION. Energy from sunlight is captured by photosynthesis in plants, providing the basis for the terrestrial food chain. This process takes place in chloroplasts, subcellular structures that derived from photosynthetic bacteria a billion years ago. Chloroplasts have their own DNA, containing genes encoding the most important photosynthetic proteins. This project aims to provide the world’s best resources for the study of chloroplast genes. In ....IDENTIFYING CONTROL ELEMENTS IN CHLOROPLAST GENE EXPRESSION. Energy from sunlight is captured by photosynthesis in plants, providing the basis for the terrestrial food chain. This process takes place in chloroplasts, subcellular structures that derived from photosynthetic bacteria a billion years ago. Chloroplasts have their own DNA, containing genes encoding the most important photosynthetic proteins. This project aims to provide the world’s best resources for the study of chloroplast genes. In the process, we will discover how these important genes are regulated to provide photosynthetic proteins in the right amounts, in the right cells, at the right time. The knowledge and resources gained will facilitate improvement of photosynthetic function in future agricultural crops.Read moreRead less
The evolutionary transition from anaerobic to aerobic metabolism. This project aims to find out how life on Earth survived the revolutionary changes when cyanobacteria first released oxygen into the atmosphere. These events led to a transition from anoxic (oxygen-free) to oxic (oxygen-rich) conditions. A comparative genomic view across a series of photosynthetic organisms will be performed at the molecular level with ecological interpretation. Understanding of what metabolic changes occurred in ....The evolutionary transition from anaerobic to aerobic metabolism. This project aims to find out how life on Earth survived the revolutionary changes when cyanobacteria first released oxygen into the atmosphere. These events led to a transition from anoxic (oxygen-free) to oxic (oxygen-rich) conditions. A comparative genomic view across a series of photosynthetic organisms will be performed at the molecular level with ecological interpretation. Understanding of what metabolic changes occurred in response to the shifts in the environment will have wide implications for predicting the evolutionary events that are still occurring today, such as rapidly changing climatic conditions. This fundamental research will enhance Australia's profile in this field.Read moreRead less
Novel Chlorophylls and New Directions in Photosynthesis. Understanding how solar energy is used in photosynthesis is of global importance and will contribute to cutting-edge photosynthetic research by Australian scientists. We aim to discover how and why the key photosynthetic pigments, chlorophylls, are synthesised and used; this will provide new opportunities for breakthroughs in frontier technologies, such as photoelectric cells based on carbon rather than silicon. We aim to understand how no ....Novel Chlorophylls and New Directions in Photosynthesis. Understanding how solar energy is used in photosynthesis is of global importance and will contribute to cutting-edge photosynthetic research by Australian scientists. We aim to discover how and why the key photosynthetic pigments, chlorophylls, are synthesised and used; this will provide new opportunities for breakthroughs in frontier technologies, such as photoelectric cells based on carbon rather than silicon. We aim to understand how novel chlorophylls are used in a variety of important organisms in a range of ecological niches. The results will aid understanding of the effects of global climate change on coral reefs, in open-ocean systems and in other important biological communities.Read moreRead less
Mastering pyrimidine editing in RNA. Many plants and animals can alter their genetic information via RNA (ribonucleic acid) editing, a process that is often essential for the growth and development of the organism. This ability provides accurate control over gene expression and has great potential as a biotechnological tool in agriculture and medicine. RNA editing could be used to switch genes on or off in biotechnological production systems with an unprecedented degree of precision, or to corre ....Mastering pyrimidine editing in RNA. Many plants and animals can alter their genetic information via RNA (ribonucleic acid) editing, a process that is often essential for the growth and development of the organism. This ability provides accurate control over gene expression and has great potential as a biotechnological tool in agriculture and medicine. RNA editing could be used to switch genes on or off in biotechnological production systems with an unprecedented degree of precision, or to correct genetic diseases. This project aims to understand two RNA editing pathways in plants, one of which is found nowhere else and likely to involve a novel enzymatic mechanism. We will use the understanding gained to develop novel RNA processing tools usable in any living organism.Read moreRead less
Modern reptiles with ancient toxins: the molecular origin and evolution of novel bioactive proteins from squamate dental glands. Animal venoms provide a rich source of novel bioactive proteins, some of which have demonstrated therapeutically useful activities. Through this researcher's unique approach of investigating previously unmapped squamate venom systems, there is potential for the identification of divergent, bioactive proteins. Those already identified by the applicant in the dental gl ....Modern reptiles with ancient toxins: the molecular origin and evolution of novel bioactive proteins from squamate dental glands. Animal venoms provide a rich source of novel bioactive proteins, some of which have demonstrated therapeutically useful activities. Through this researcher's unique approach of investigating previously unmapped squamate venom systems, there is potential for the identification of divergent, bioactive proteins. Those already identified by the applicant in the dental glands of Australian monitor lizard species represent a tremendous opportunity for biodiscovery. Further knowledge in this area will increase medical understandings of bites and aid conservation measures informed by the natural history of these animals.Read moreRead less
Evolution, structure and function of key components in a molecular machine. The project will provide the basis for training of students and personnel in the previously recognized priority "Genomes-Phenomes", still the central theme of modern biology. In particular,
collaborations established with the Los Alamos National Laboratory in New Mexico will transfer to Australia expertise in the cutting edge discipline of small angle scattering for analysis of biologically important molecules. Such tr ....Evolution, structure and function of key components in a molecular machine. The project will provide the basis for training of students and personnel in the previously recognized priority "Genomes-Phenomes", still the central theme of modern biology. In particular,
collaborations established with the Los Alamos National Laboratory in New Mexico will transfer to Australia expertise in the cutting edge discipline of small angle scattering for analysis of biologically important molecules. Such training is essential for developing a future pool of skilled Australian scientists to staff and utilise the major national infrastructure developments represented by the Replacement Research Reactor and Australian Synchrotron, as outlined in the National Research Priority "Frontier Technologies".Read moreRead less