Molecular and cellular mechanisms of action of novel plant guanylyl cyclase enzymes - a new class of overlapping dual-domain molecules. A group of highly unusual catalytic molecules in plants has been identified. The mechanisms of action of these molecules will be studied in this project to learn their role in regulating plant growth in changing climates. The results will reveal how these molecules function and also provide new insights for the development of multi-functional artificial molecule ....Molecular and cellular mechanisms of action of novel plant guanylyl cyclase enzymes - a new class of overlapping dual-domain molecules. A group of highly unusual catalytic molecules in plants has been identified. The mechanisms of action of these molecules will be studied in this project to learn their role in regulating plant growth in changing climates. The results will reveal how these molecules function and also provide new insights for the development of multi-functional artificial molecules.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE170100054
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
How plants respond to cell wall signals. This project aims to discover mechanisms of plant cell wall signalling and modify plant cell walls for improved food, textiles, building materials and renewable biofuels without inadvertently activating cell wall signalling. However, attempts to improve cell walls have been ineffective because it is not known how plants use cell wall signalling to sense and compensate for cell wall changes. This project expects to develop both a genetic screen to find mut ....How plants respond to cell wall signals. This project aims to discover mechanisms of plant cell wall signalling and modify plant cell walls for improved food, textiles, building materials and renewable biofuels without inadvertently activating cell wall signalling. However, attempts to improve cell walls have been ineffective because it is not known how plants use cell wall signalling to sense and compensate for cell wall changes. This project expects to develop both a genetic screen to find mutants defective in cell wall signal transduction and a bioinformatic tool to compare genomes across species and discover cell wall signalling components. Potential benefits include addressing Australian research priorities: Food, Environmental Change, and Energy.Read moreRead less
Structural and functional analysis of the protein kinase R. We have shown that protein kinase R (PKR) plays a key role in regulating the body's response to virus infections, inflammation and cancer. This project will identify mechanisms that regulate the activity of PKR and provide information useful for the development of novel drugs.
A molecular investigation into the naïve T cell repertoire. This project aims to interrogate the relationship between T cell receptor (TCR) recognition modes and T cell recruitment and activation. CD8+ T cells are important for adaptive immunity. Their recognition, via TCR, of peptides bound to MHC class I antigen-presenting molecules (pMHCI), initiates a signalling cascade which activates T cells effector functions. All structural information on TCR recognition of pMHCI is based on TCRs prevale ....A molecular investigation into the naïve T cell repertoire. This project aims to interrogate the relationship between T cell receptor (TCR) recognition modes and T cell recruitment and activation. CD8+ T cells are important for adaptive immunity. Their recognition, via TCR, of peptides bound to MHC class I antigen-presenting molecules (pMHCI), initiates a signalling cascade which activates T cells effector functions. All structural information on TCR recognition of pMHCI is based on TCRs prevalent in immune responses, and all recognise pMHCI using a conserved orientation. This project aims to use this observation to study the relationship between TCR recognition modes and T cell recruitment and activation.Read moreRead less
How protein tyrosine phosphatases select their substrates. Protein tyrosine phosphatases (PTPs) are enzymes that control the response of cells to divergent environmental stimuli. This project will determine how individual PTPs exert selective effects on cellular communication networks to coordinate organismal development, growth and survival.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100157
Funder
Australian Research Council
Funding Amount
$600,000.00
Summary
Confocal and single molecule microscopes for systems microscopy. This project aims to establish Australia’s first system microscopy facility with dedicated live-cell confocal and single-molecule fluorescence microscopes. In systems microscopy, the imaging workflow is automated so that large and unbiased data sets of the spatiotemporal organisation of molecules and cells can be generated. Combined with statistical and bioinformatics analyses, image-derived data provides system-wide information th ....Confocal and single molecule microscopes for systems microscopy. This project aims to establish Australia’s first system microscopy facility with dedicated live-cell confocal and single-molecule fluorescence microscopes. In systems microscopy, the imaging workflow is automated so that large and unbiased data sets of the spatiotemporal organisation of molecules and cells can be generated. Combined with statistical and bioinformatics analyses, image-derived data provides system-wide information that is not easily obtainable with other approaches. The project will enable Australian researchers to image and analyse the full complexity of biological systems, potentially transforming cell biology, drug development and understanding the molecular basis of disease. It will also demonstrate how the capacity of microscopy facilities can be enhanced and bias in imaging data reduced by automating data acquisition and mining of image-based data.Read moreRead less
Mechanisms controlling enteroendocrine hormone secretion in human duodenum. This project aims to gain a deeper understanding of nutrient sensing pathways present in enteroendocrine cells within the human intestine. These cells control digestive function, blood glucose levels and food intake and are thus critical to digestion. This project will endeavour to be the first to assess the biology of human enteroendocrine cells and will use innovative approaches to deeply assess function from the level ....Mechanisms controlling enteroendocrine hormone secretion in human duodenum. This project aims to gain a deeper understanding of nutrient sensing pathways present in enteroendocrine cells within the human intestine. These cells control digestive function, blood glucose levels and food intake and are thus critical to digestion. This project will endeavour to be the first to assess the biology of human enteroendocrine cells and will use innovative approaches to deeply assess function from the level of the individual to isolated enteroendocrine cells.Read moreRead less
The role of phosphoinositides in endosomal maturation dynamics. This project aims to investigate the regulation of an intracellular compartment within a cell called endosomes, which plays critical roles in cellular homeostasis, signalling and pathogen entry. New knowledge is expected to be generated in understanding endosome maturation and the signalling events that drive this process using a unique, multidisciplinary approach combining state of the art imaging techniques and high throughput pro ....The role of phosphoinositides in endosomal maturation dynamics. This project aims to investigate the regulation of an intracellular compartment within a cell called endosomes, which plays critical roles in cellular homeostasis, signalling and pathogen entry. New knowledge is expected to be generated in understanding endosome maturation and the signalling events that drive this process using a unique, multidisciplinary approach combining state of the art imaging techniques and high throughput protein analysis. The anticipated outcomes will be to define the molecular steps that govern the membrane-bound machinery on endosomes that directs endosomal maturation. This should provide significant benefits in delineating a process that is linked to almost all aspects of cell life.Read moreRead less
Understanding the mechanisms of class B GPCR-transducer coupling. Current effort in developing drugs targeting G protein-coupled receptors (GPCRs) often result in low success rate due to the lack of understanding of the complexity and the spatiotemporal control of receptor function. The research program aims to understand the molecular mechanisms of receptor/transducer selectivity. The proposal integrated multi-disciplinary approaches to provide a deeper understanding of how the receptor is acti ....Understanding the mechanisms of class B GPCR-transducer coupling. Current effort in developing drugs targeting G protein-coupled receptors (GPCRs) often result in low success rate due to the lack of understanding of the complexity and the spatiotemporal control of receptor function. The research program aims to understand the molecular mechanisms of receptor/transducer selectivity. The proposal integrated multi-disciplinary approaches to provide a deeper understanding of how the receptor is activated responding to different ligands. The anticipated outcome including an enhanced capacity for understanding the fundamental biology, a stronger national and international collaborations. This will provide significant benefits including expanded basic knowledge and improvements in drug development efficiency. Read moreRead less
New targets for antiviral therapies. The ability of dangerous viruses to cause lethal disease depends on their capacity to evade the immune system of infected hosts. This project will uncover at the molecular level the strategies used by viruses to disable immune responses; this will identify new ways to treat incurable diseases, by disabling the virus' defences against the immune system.