Phasevarions of Haemophilus influenzae: mechanisms and origins of a novel epigenetic system controlling coordinated random switching in expression of multiple genes. Central to the utilisation of biological information is our ability to identify and interpret DNA sequence information from genomes. In bacteria that cause disease, these investigations can identify key aspects of the infectious process or potential components of vaccines or new targets for antibiotics. Our recent work has identifie ....Phasevarions of Haemophilus influenzae: mechanisms and origins of a novel epigenetic system controlling coordinated random switching in expression of multiple genes. Central to the utilisation of biological information is our ability to identify and interpret DNA sequence information from genomes. In bacteria that cause disease, these investigations can identify key aspects of the infectious process or potential components of vaccines or new targets for antibiotics. Our recent work has identified a new genetic system, the 'phasevarion', that mediates random expression of multiple genes. The proposed research aims to advance our understanding of gene expression at the most basic level, revealing how bacteria generate diverse populations to evade environmental and immune stresses, and facilitating improved interpretation and use of DNA sequences for researchers and industry in this field.Read moreRead less
Functional genomics of large clostridial plasmids. The aims of this genomics project are to determine how large DNA elements called plasmids are able to be transferred between different strains of a bacterium that causes disease in domestic livestock. These plasmids carry genes that encode the potent protein toxins that are responsible for several diseases. To understand how these diseases are spread we must learn how the plasmids have evolved and whether they can move from bacterium to bacteriu ....Functional genomics of large clostridial plasmids. The aims of this genomics project are to determine how large DNA elements called plasmids are able to be transferred between different strains of a bacterium that causes disease in domestic livestock. These plasmids carry genes that encode the potent protein toxins that are responsible for several diseases. To understand how these diseases are spread we must learn how the plasmids have evolved and whether they can move from bacterium to bacterium. The successful completion of the project will result in a detailed understanding of genetic elements that are important mediators of several diseases of importance to Australian primary industry.Read moreRead less
Characterising post-translational modifications in bacterial proteins. This project represents the first global attempt to characterize post-translational modifications in bacterial proteins using the tools of proteomics. Modifications to proteins are key elements in altering their function. In bacteria, modifications are important in cell-cell adhesion, signalling and triggering of the immune response. Characterisation of modified proteins and their sites of modification represents an opportuni ....Characterising post-translational modifications in bacterial proteins. This project represents the first global attempt to characterize post-translational modifications in bacterial proteins using the tools of proteomics. Modifications to proteins are key elements in altering their function. In bacteria, modifications are important in cell-cell adhesion, signalling and triggering of the immune response. Characterisation of modified proteins and their sites of modification represents an opportunity to understand how bacterial cell populations communicate in the environment, as well as aid in understanding pathogenesis in medical, veterinary and food-borne pathogens. Therefore, improved vaccine targets and therapeutics, as well as method-based products, may be generated by this project.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989341
Funder
Australian Research Council
Funding Amount
$690,000.00
Summary
Advanced NanoBiomaterials Imaging Facility. The convergence of nanotechnology with biotechnology offers unprecedented opportunities to prepare nanomaterials with defined structure and function on the nanometre scale. However, the small length scales involved in nanomaterials present challenges in their characterisation, and in turn, their interaction with biological systems. The Advanced NanoBiomaterials Imaging Facility will provide state-of-the-art equipment for examining the properties of nan ....Advanced NanoBiomaterials Imaging Facility. The convergence of nanotechnology with biotechnology offers unprecedented opportunities to prepare nanomaterials with defined structure and function on the nanometre scale. However, the small length scales involved in nanomaterials present challenges in their characterisation, and in turn, their interaction with biological systems. The Advanced NanoBiomaterials Imaging Facility will provide state-of-the-art equipment for examining the properties of nanomaterials and their interaction with biosystems. The equipment will facilitate the development of new materials that are expected to underpin advances in drug delivery, diagnostics and implant devices, further strengthening Australia's strong reputation in these areas.Read moreRead less
Molecular Cell Biology and Comparative Genomics Of Planctomycetes and Verrucomicrobia In Relation To Evolution Of Cytoskeletal Proteins and Membrane-bounded Compartments. Planctomycetes and verrucomicrobia are evolutionarily distinct groups of bacteria which possess unusual cell structure and which share some significant genes important in cell biology with eukaryotes e.g. in verrucomicrobia the cytoskeleton protein tubulin. These bacteria are important for understanding the transition from no ....Molecular Cell Biology and Comparative Genomics Of Planctomycetes and Verrucomicrobia In Relation To Evolution Of Cytoskeletal Proteins and Membrane-bounded Compartments. Planctomycetes and verrucomicrobia are evolutionarily distinct groups of bacteria which possess unusual cell structure and which share some significant genes important in cell biology with eukaryotes e.g. in verrucomicrobia the cytoskeleton protein tubulin. These bacteria are important for understanding the transition from non-nucleated cells with simple cell division to nucleated cells with chromosome separation via cytoskeletal protein movement.The project will compare genomes of of planctomycetes and verrucomicrobia to determine their relationship, determine whether the tubulin homolog of verrucomicrobia can form cytoskeleton structures, and characterize the cytoskeleton of ammonium-oxidizing planctomycetes used in wastewater treatment.Read moreRead less
Functional Genomics and Host Cell Specificity of Herpesviruses. Herpesviruses cause severe diseases in many species, but research on their large DNA genomes has been difficult due to the need to use animal cell cultures for the generation of virus mutants. The cloning of complete herpesvirus genomes as Bacterial Artificial Chromosomes (BACs) has revolutionized herpesvirus genomics, and it is now possible to examine herpesvirus gene functions in unprecedented detail using elegant new mutation tec ....Functional Genomics and Host Cell Specificity of Herpesviruses. Herpesviruses cause severe diseases in many species, but research on their large DNA genomes has been difficult due to the need to use animal cell cultures for the generation of virus mutants. The cloning of complete herpesvirus genomes as Bacterial Artificial Chromosomes (BACs) has revolutionized herpesvirus genomics, and it is now possible to examine herpesvirus gene functions in unprecedented detail using elegant new mutation techniques. The project, based on two related equine herpesviruses, will identify new targets for antiviral drugs or vaccines. These herpesvirus BAC systems represent frontier science that greatly facilitates the study of links between genome and phenome.Read moreRead less
Biological phosphorous removal for wastewater treatment. The aim is to provide a scientific basis for understanding how phosphorous can be removed in wastewater treatment plants, using environmentally safe biological methods rather than by using chemicals. This is expected to lead to improved performance in wastewater treatment plants, which will be of economic and environmental benefit, particularly to regional communities in inland Australia.
Novel vaccines and serotyping scheme for Haemophilus parasuis. Glasser's disease, caused by the bacterium Haemophilus parasuis, is a significant problem in Australian and overseas pig industries. Current approaches to the management of Glassers disease utilise antibacterials and also vaccines. However, antibacterials are of limited effectiveness in juvenile pigs (weaners) that are difficult to medicate other than by injection, and current vaccines are only protective against the serotypes incl ....Novel vaccines and serotyping scheme for Haemophilus parasuis. Glasser's disease, caused by the bacterium Haemophilus parasuis, is a significant problem in Australian and overseas pig industries. Current approaches to the management of Glassers disease utilise antibacterials and also vaccines. However, antibacterials are of limited effectiveness in juvenile pigs (weaners) that are difficult to medicate other than by injection, and current vaccines are only protective against the serotypes included in the vaccine. We propose to examine the immune response to natural infection and identify potential vaccine candidates which will then be tested in vaccine trials. The APAI will focus on developing a DNA-based typing scheme for H. parasuis.Read moreRead less
Arsenite oxidation by a novel bacterium that is a candidate for arsenic bioremediation. The arsenic munching microbe NT-26 could help in the fight to clean up arsenic-contaminated mining waste and drinking water. Arsenic poses an environmental problem in countries such as Australia, USA and Canada owing primarily to mining activities. The problem in countries such as Bangladesh and West Bengal are even more serious as these people are dying of arsenic-related diseases as they rely on water conta ....Arsenite oxidation by a novel bacterium that is a candidate for arsenic bioremediation. The arsenic munching microbe NT-26 could help in the fight to clean up arsenic-contaminated mining waste and drinking water. Arsenic poses an environmental problem in countries such as Australia, USA and Canada owing primarily to mining activities. The problem in countries such as Bangladesh and West Bengal are even more serious as these people are dying of arsenic-related diseases as they rely on water containing arsenic as their primary source of drinking water. The outcomes of this research should provide the necessary information for removing arsenic from all types of waters.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0883068
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
Dako ACIS III Cellular Image Acquisition and Analysis System. The scientific advances that will be possible with the acquisition of this novel, cutting-edge instrument will enhance the research outputs of all investigators using it. The ability to visualize and analyze cells and tissues from many different animal species, to elucidate both normal and abnormal functions, will be enhanced by the use of this technology. This will lead to production of quantitative statistical data that in turn will ....Dako ACIS III Cellular Image Acquisition and Analysis System. The scientific advances that will be possible with the acquisition of this novel, cutting-edge instrument will enhance the research outputs of all investigators using it. The ability to visualize and analyze cells and tissues from many different animal species, to elucidate both normal and abnormal functions, will be enhanced by the use of this technology. This will lead to production of quantitative statistical data that in turn will inform new approaches to improve and maintain the health of humans and other animals.Read moreRead less