Structure and function of human zinc transporter membrane proteins. The aim of this project is to create fundamental new knowledge on how important mammalian membrane proteins operate. Membrane proteins are key drug targets and are significantly under-represented in structural databases. The project plans to combine innovative membrane protein screening technology with gene expression, structural biology, biophysics and cell biology. The project outcomes may elucidate specific molecular mechanis ....Structure and function of human zinc transporter membrane proteins. The aim of this project is to create fundamental new knowledge on how important mammalian membrane proteins operate. Membrane proteins are key drug targets and are significantly under-represented in structural databases. The project plans to combine innovative membrane protein screening technology with gene expression, structural biology, biophysics and cell biology. The project outcomes may elucidate specific molecular mechanisms underpinning the essential biological process of zinc homeostasis.Read moreRead less
Molecular mechanisms of novel bacterial copper defense proteins. This project aims to reveal molecular and cellular mechanisms used by bacteria to neutralise the destructive effects of copper. Copper is an essential trace element in living systems. It is toxic to bacteria and so plays a vital role in nutritional immunity. To counteract copper toxicity, bacteria have evolved defense mechanisms. The project will investigate a novel but poorly understood class of bacterial proteins, the suppressor ....Molecular mechanisms of novel bacterial copper defense proteins. This project aims to reveal molecular and cellular mechanisms used by bacteria to neutralise the destructive effects of copper. Copper is an essential trace element in living systems. It is toxic to bacteria and so plays a vital role in nutritional immunity. To counteract copper toxicity, bacteria have evolved defense mechanisms. The project will investigate a novel but poorly understood class of bacterial proteins, the suppressor of copper sensitivity proteins, that contribute to this key virulence trait. The expected outcomes will be fundamental new knowledge of metallo-protein diversity, bacterial virulence mechanisms, and membrane protein function with potential impact on health, environment, and biotechnology.Read moreRead less
Uncovering the molecular mechanisms of potassium channel activity. The aim of this project is to determine the mechanisms of protein-mediated potassium ion transport across cell membranes. It will combine advanced simulations, structural biology and electrophysiology to describe the detailed molecular processes underscoring calcium-activated potassium channel conduction, gating and inactivation. The expected outcome is an improved description of how ion channels recognise and respond to physiolo ....Uncovering the molecular mechanisms of potassium channel activity. The aim of this project is to determine the mechanisms of protein-mediated potassium ion transport across cell membranes. It will combine advanced simulations, structural biology and electrophysiology to describe the detailed molecular processes underscoring calcium-activated potassium channel conduction, gating and inactivation. The expected outcome is an improved description of how ion channels recognise and respond to physiological stimuli to control electrical signalling the body. Our results will provide benefits in the form of basic understanding relevant to ion transport phenomena in biological systems, and atomic-level views of nervous system function to guide future directions in pharmacology.Read moreRead less
Comparing properties of innate immune proteins of bats and humans. Supra-molecular protein complexes known as signalosomes drive our innate immune response by forming large signaling hubs capable of recruiting downstream effectors. This project aims to compare the properties and structure of human and bat signalosomes and discover the molecular origins of the “supra-immunity” of bats. In this context, the project expects to generate new knowledge concerning the fundamental molecular mechanisms t ....Comparing properties of innate immune proteins of bats and humans. Supra-molecular protein complexes known as signalosomes drive our innate immune response by forming large signaling hubs capable of recruiting downstream effectors. This project aims to compare the properties and structure of human and bat signalosomes and discover the molecular origins of the “supra-immunity” of bats. In this context, the project expects to generate new knowledge concerning the fundamental molecular mechanisms that regulate the signalosomes. The intended outcome is to answer the long-standing question of control of speed and amplitude of innate immune response at the molecular level. Both locally and internationally, this new approach should provide benefits across structural biology, molecular evolution and biotechnology.Read moreRead less
High-throughput microfluidic approach to mapping hierarchies of interactions in the gene regulation machinery. The exploration of protein-protein interactions networks is becoming an extremely active area of research in life sciences. The current project will develop new approaches to accelerate the discovery of novel interacting proteins participating in gene regulation, in order to understand how cells differentiate into different tissues and organs.
Elucidating the molecular basis of plant potyvirus resistance . Plant viruses are responsible for a large proportion of crop losses, and genetic resistance is currently the most effective means to control viral spread. This project investigates, on a molecular and structural level, host factors that plant viruses hijack during infection, and in particular, the mutations in these factors that confer resistance. We further aim to elucidate the mechanisms by which plant viruses overcome resistance ....Elucidating the molecular basis of plant potyvirus resistance . Plant viruses are responsible for a large proportion of crop losses, and genetic resistance is currently the most effective means to control viral spread. This project investigates, on a molecular and structural level, host factors that plant viruses hijack during infection, and in particular, the mutations in these factors that confer resistance. We further aim to elucidate the mechanisms by which plant viruses overcome resistance mediated by these host factors. A detailed understanding of the molecular interactions between plant viruses and their host will enable new, robust and more effective forms of resistance to be engineered. This work therefore has economic and environmental implications for agricultural productivity in Australia. Read moreRead less
The photons take charge: Elucidating the structure and stability of distonic radical anions by mass spectrometry and photoelectron spectroscopy. Recent work has discovered that certain radical anions have electronic configurations that defy chemical convention and exhibit exceptional radical stability. Exploitation of this breakthrough first requires experimental elucidation of the intrinsic electronic structure of these compounds and how it relates to their remarkable properties. This project w ....The photons take charge: Elucidating the structure and stability of distonic radical anions by mass spectrometry and photoelectron spectroscopy. Recent work has discovered that certain radical anions have electronic configurations that defy chemical convention and exhibit exceptional radical stability. Exploitation of this breakthrough first requires experimental elucidation of the intrinsic electronic structure of these compounds and how it relates to their remarkable properties. This project will probe the fundamental structure and energetics of radical anions by modifying instrumentation to enable multi-step gas-phase ion synthesis to be efficiently coupled with anion photoelectron spectroscopy. These investigations are essential to revealing the scope of this phenomenon in free radical chemistry and biology and could inform future development of new catalysts for polymerisation.Read moreRead less
Understanding grain boundary segregation - a route to developing new advanced engineering materials. This project will investigate atomic-scale grain boundary segregation - one of the most important factors influencing the properties of engineering alloys. This will be applied in the development of new Ti, Zr and nanocrystalline alloys with a large potential market and for which Australia is extremely well positioned to become a major producer.
Protecting cereal grain development at high temperatures. This project aims to investigate new temperature-responsive factors that regulate cereal grain development to protect grain production under heat stress. The new research will leverage international collaborations with access to cutting-edge genetic and technological resources, and refine novel X-ray imaging techniques in Australia, to observe how temperature affects flower structure and function in barley and rice. Favourable mutations t ....Protecting cereal grain development at high temperatures. This project aims to investigate new temperature-responsive factors that regulate cereal grain development to protect grain production under heat stress. The new research will leverage international collaborations with access to cutting-edge genetic and technological resources, and refine novel X-ray imaging techniques in Australia, to observe how temperature affects flower structure and function in barley and rice. Favourable mutations that optimise plant yield and fitness will be defined and explored in other, more complex, cereals such as wheat. Expected outcomes will be fundamental breakthroughs in understanding how plants respond to, and buffer, the effects of heat to lead to translational breeding strategies that bolster grain yield.Read moreRead less
Formation, photochemistry and fate of gas-phase peroxyl radicals. This project aims to understand how peroxyl radical reactions modulate the composition of air. The gas-phase chemical reactions of organic peroxyl radicals contribute to air quality in clean and polluted environments. However, experimental observations of these reaction intermediates and the complex mechanisms governing their formation and fate are limited. This project will use mass spectrometry and laser-based methods to interro ....Formation, photochemistry and fate of gas-phase peroxyl radicals. This project aims to understand how peroxyl radical reactions modulate the composition of air. The gas-phase chemical reactions of organic peroxyl radicals contribute to air quality in clean and polluted environments. However, experimental observations of these reaction intermediates and the complex mechanisms governing their formation and fate are limited. This project will use mass spectrometry and laser-based methods to interrogate the chemical and photochemical reactions of peroxyl radicals in the gas phase. This project expects to understand the composition and dynamics of the troposphere and inform strategies to improve air quality.Read moreRead less