Nettles & toxic toupees: the molecular weaponry of venomous caterpillars. This project aims to investigate the structure, function and evolution of peptide toxins in venoms made by caterpillars in superfamily Zygaenoidea. Caterpillars in this group are covered in spines that inject pain-causing venoms, and this protects them from vertebrate and invertebrate predators. This project will test if peptides in this venom cause pain by pharmacological modulation of mammalian ion channels and signallin ....Nettles & toxic toupees: the molecular weaponry of venomous caterpillars. This project aims to investigate the structure, function and evolution of peptide toxins in venoms made by caterpillars in superfamily Zygaenoidea. Caterpillars in this group are covered in spines that inject pain-causing venoms, and this protects them from vertebrate and invertebrate predators. This project will test if peptides in this venom cause pain by pharmacological modulation of mammalian ion channels and signalling receptors, and if they have insecticidal properties. The first three-dimensional structures of caterpillar venom peptides will also be solved. Genomes of representatives of two different zygaenoid families will be produced, and genomic techniques will be used to elucidate how venom use evolved at the molecular level.Read moreRead less
A new class of sodium channel toxin from ant venoms . Ants are diverse and ubiquitous and the ability of certain species to sting is familiar to many of us. Yet we know remarkably little about the chemistry underlying these stings. We recently discovered that the venoms of ants, including common Australian species, harbour a novel and unique class of sodium channel toxins. Building on this discovery, the aim of this project will be to perform an in-depth characterisation of the effects of these ....A new class of sodium channel toxin from ant venoms . Ants are diverse and ubiquitous and the ability of certain species to sting is familiar to many of us. Yet we know remarkably little about the chemistry underlying these stings. We recently discovered that the venoms of ants, including common Australian species, harbour a novel and unique class of sodium channel toxins. Building on this discovery, the aim of this project will be to perform an in-depth characterisation of the effects of these toxins on sodium channels and to uncover the diversity and breadth of this toxin class in ant venoms. The outcome of this project will be novel insights into the chemistry of ant venoms and new insights into sodium channel function.Read moreRead less
Developing a multicomponent platform for targeted gene delivery. Gene delivery systems are important tools in biological research and offer many exciting future prospects. Delivering gene material is very difficult in practice: rapid deterioration, poor cell uptake, and reaching the right tissue and cell types are major obstacles. Ways to overcome each barrier individually have been suggested in existing research but these components have not yet been combined in a single solution, which this pr ....Developing a multicomponent platform for targeted gene delivery. Gene delivery systems are important tools in biological research and offer many exciting future prospects. Delivering gene material is very difficult in practice: rapid deterioration, poor cell uptake, and reaching the right tissue and cell types are major obstacles. Ways to overcome each barrier individually have been suggested in existing research but these components have not yet been combined in a single solution, which this project will tackle. This proposal aims to create a technology to stabilise and deliver active gene material to target cells. The gene delivery tool developed in this project will advance biological research greatly with many potential future applications.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200100800
Funder
Australian Research Council
Funding Amount
$415,693.00
Summary
Legume meristem signalling peptides: an untapped niche. This project aims to characterise novel signalling peptides regulating legume stem cell niches to enhance molecular-genetic networks and uncover potential key targets for crop improvement. Legumes represent agricultural sustainability through their decreased fertiliser requirements resulting in reduced carbon and nitrogen footprints. However, their unique gene signalling networks are poorly understood in comparison to traditional cereal cro ....Legume meristem signalling peptides: an untapped niche. This project aims to characterise novel signalling peptides regulating legume stem cell niches to enhance molecular-genetic networks and uncover potential key targets for crop improvement. Legumes represent agricultural sustainability through their decreased fertiliser requirements resulting in reduced carbon and nitrogen footprints. However, their unique gene signalling networks are poorly understood in comparison to traditional cereal crops. The proposed research intends to generate new knowledge in peptide signalling, plant development and legume symbiosis using multidisciplinary techniques. Expected project outcomes will increase understanding of peptide signalling in legume growth and adaption with useful findings for crop enhancement.Read moreRead less
Understanding prokaryotic small proteins from context. Prokaryotic small proteins are increasingly recognised to play important biological roles but have been largely overlooked due to the lack of adequate tools to study them. This project aims to develop new methods to identify and predict the functions of small proteins from microbial communities by studying sequence patterns in their genomes. These predicted functions will be confirmed in the laboratory, leading to a catalogue of newly charac ....Understanding prokaryotic small proteins from context. Prokaryotic small proteins are increasingly recognised to play important biological roles but have been largely overlooked due to the lack of adequate tools to study them. This project aims to develop new methods to identify and predict the functions of small proteins from microbial communities by studying sequence patterns in their genomes. These predicted functions will be confirmed in the laboratory, leading to a catalogue of newly characterised small proteins from a diverse range of habitats and geographies. By creating new ways to study the role of small proteins in the global microbiome, we will provide the foundational knowledge required to leverage these proteins for use in biotechnology. Read moreRead less
Venom-derived blood-brain-barrier shuttles. This project aims to discover new venom peptides capable of crossing the blood-brain barrier and to develop non-toxic peptide-based brain delivery systems. It addresses long-standing challenges and knowledge gaps in the delivery of macromolecules across biological barriers. Expected outcomes include an improved understanding of the strategies nature exploits to reach targets in the brain, mechanistic pathways to cross biological membranes, and innovati ....Venom-derived blood-brain-barrier shuttles. This project aims to discover new venom peptides capable of crossing the blood-brain barrier and to develop non-toxic peptide-based brain delivery systems. It addresses long-standing challenges and knowledge gaps in the delivery of macromolecules across biological barriers. Expected outcomes include an improved understanding of the strategies nature exploits to reach targets in the brain, mechanistic pathways to cross biological membranes, and innovative discovery and chemistry strategies to advance fundamental research across the chemical and biological sciences. Anticipated benefits include technological innovations relevant to Australia’s biotechnology sector and enhanced capacity for cross-disciplinary collaboration.Read moreRead less
Autocyclases: A new class of self-cyclising proteins. The biotechnology sector is emerging as an important economic strength in Australia. While the improved efficacy and selectivity of biomolecules has seen them emerge as alternatives to existing chemicals in health and agriculture, the stability of biomolecules remains a major limiting factor. A general strategy for improving protein stability is by joining the ends of the peptide chain in a cyclisation reaction. While a wide range of cyclic p ....Autocyclases: A new class of self-cyclising proteins. The biotechnology sector is emerging as an important economic strength in Australia. While the improved efficacy and selectivity of biomolecules has seen them emerge as alternatives to existing chemicals in health and agriculture, the stability of biomolecules remains a major limiting factor. A general strategy for improving protein stability is by joining the ends of the peptide chain in a cyclisation reaction. While a wide range of cyclic peptides and proteins are being developed in Australia and around the world, the cyclisation reaction presents a significant challenge. In this proposal we detail a novel method for protein cyclisation as a general, low-cost and green production method for making a diverse range of biomolecules. Read moreRead less
Expanding access to modified proteins via a novel semi-synthetic platform. This project aims to address a critical knowledge gap in understanding how post-translational modifications modulate the structure and activity of proteins. By developing an innovative semi-synthetic platform to produce pure proteins inaccessible by existing methods, the project will reveal how natural protein modifications influence structure and function. Expected outcomes include the delivery of breakthrough technologi ....Expanding access to modified proteins via a novel semi-synthetic platform. This project aims to address a critical knowledge gap in understanding how post-translational modifications modulate the structure and activity of proteins. By developing an innovative semi-synthetic platform to produce pure proteins inaccessible by existing methods, the project will reveal how natural protein modifications influence structure and function. Expected outcomes include the delivery of breakthrough technologies for accessing modified proteins for a range of applications in academia and industry, as well as the generation of new knowledge in the fields of chemistry and biology. The project will lead to the training of interdisciplinary early career researchers and has the potential to benefit Australia’s biotechnology sector.Read moreRead less