Antibacterial Material Design via Mechanism-Based Mathematical Modelling. This Project aims to provide new rules for the design of novel polymer materials with antibacterial properties by employing mechanism-based mathematical modelling.
This Project expects to generate new understanding of those mechanisms which underpin the antibacterial activity of these materials, how bacteria respond to these through metabolic changes and emergence of resistance.These rules will govern material design to yi ....Antibacterial Material Design via Mechanism-Based Mathematical Modelling. This Project aims to provide new rules for the design of novel polymer materials with antibacterial properties by employing mechanism-based mathematical modelling.
This Project expects to generate new understanding of those mechanisms which underpin the antibacterial activity of these materials, how bacteria respond to these through metabolic changes and emergence of resistance.These rules will govern material design to yield new antibacterial materials with improved properties.
Expected outcomes of this project may be a novel mechanism-based mathematical model that will enable the next-generation of antibacterial materials.
This outcome will help address the increasing economic and social burden of antibiotic drug resistance in Australia.
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Australian Laureate Fellowships - Grant ID: FL210100071
Funder
Australian Research Council
Funding Amount
$3,246,000.00
Summary
“L-form” bacteria: basic science, antibiotics, evolution and biotechnology. This Fellowship addresses key gaps in knowledge about cell wall deficient bacteria called L-forms: an altered state of bacteria with intriguing properties both structurally and functionally. The main aims of the research program are to improve our understanding of the basic biology of L-forms and employ them as tools in several important ways: for understanding the mechanisms of cell wall synthesis and how antibiotics wo ....“L-form” bacteria: basic science, antibiotics, evolution and biotechnology. This Fellowship addresses key gaps in knowledge about cell wall deficient bacteria called L-forms: an altered state of bacteria with intriguing properties both structurally and functionally. The main aims of the research program are to improve our understanding of the basic biology of L-forms and employ them as tools in several important ways: for understanding the mechanisms of cell wall synthesis and how antibiotics work, as models for early steps in the evolution of cellular life, and as a significant new platform for the production of proteins and fine chemicals. Outcomes and benefits include improved understanding of how to generate new antibiotics, and the development of new platforms for Australian biotechnology and biocommerce.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE230100356
Funder
Australian Research Council
Funding Amount
$450,241.00
Summary
Bacterial membrane remodelling and the interaction with peptides. This project aims to elucidate the fundamental mechanism of lipid remodelling in Gram-negative outer membrane, which is critical both in preventing noxious compounds and evading host immune defence. For the first time, the complex interplays between bacterial cellular metabolism and membrane remodelling will be defined through systems pharmacology, and the precise membrane-peptide interaction will be examined by computational and ....Bacterial membrane remodelling and the interaction with peptides. This project aims to elucidate the fundamental mechanism of lipid remodelling in Gram-negative outer membrane, which is critical both in preventing noxious compounds and evading host immune defence. For the first time, the complex interplays between bacterial cellular metabolism and membrane remodelling will be defined through systems pharmacology, and the precise membrane-peptide interaction will be examined by computational and biophysical approaches. Novel knowledge will be generated to improve our understanding on how bacteria remodel their outer membrane in response to environmental stress. This will benefit the future design of much-needed antimicrobial strategies including products and technologies to target bacterial membrane. Read moreRead less
Structures to Solve Conflicts of DNA Replication and RNA Transcription. This project aims to understand how new DNA is made so quickly and without mistakes in cells that are about to divide, in spite of competition from other processes happening at the same time on the DNA that should stop or interfere with it, such as the synthesis of RNA. The project expects to use the latest available methods to uncover what the microscopic natural machines that make DNA and RNA look like, and how they compet ....Structures to Solve Conflicts of DNA Replication and RNA Transcription. This project aims to understand how new DNA is made so quickly and without mistakes in cells that are about to divide, in spite of competition from other processes happening at the same time on the DNA that should stop or interfere with it, such as the synthesis of RNA. The project expects to use the latest available methods to uncover what the microscopic natural machines that make DNA and RNA look like, and how they compete with each other for access to DNA. Potential outcomes include the identification of processes that can be compromised by small molecules that may be developed into new antibiotics. This would be of great benefit - new antibiotics are urgently needed as one approach to countering the threat of antimicrobial resistance.Read moreRead less
Structural Characterisation of the Type IX Secretion System. The Type IX Secretion System present in diverse bacteria of veterinary, agricultural, environmental and industrial importance enables effector proteins to be secreted and attached to the cell surface where they contribute to disease pathogenesis or degrade biopolymers of commercial interest. This project aims to determine the structure and assembly mechanism of this complex secretion nanomachine comprising 15 different proteins using s ....Structural Characterisation of the Type IX Secretion System. The Type IX Secretion System present in diverse bacteria of veterinary, agricultural, environmental and industrial importance enables effector proteins to be secreted and attached to the cell surface where they contribute to disease pathogenesis or degrade biopolymers of commercial interest. This project aims to determine the structure and assembly mechanism of this complex secretion nanomachine comprising 15 different proteins using state of the art microscopy. Knowledge of the structure will greatly enhance our understanding of secretion mechanisms and our ability to both inhibit the system to treat disease in animals or manipulate the system for industrial applications providing future economic and environmental benefits to our nation.Read moreRead less
Autotransporter assembly: new insights and biotechnological potential. The objective of this project is to improve our understanding of a fundamental biological problem: how autotransporters are assembled into cellular membranes. Autotransporters are a large family of bacterial proteins that play key roles in the pathogenesis of several infectious diseases. Currently, the precise mechanism by which disease-causing molecules are assembled into the outer membranes of bacteria and mitochondria is p ....Autotransporter assembly: new insights and biotechnological potential. The objective of this project is to improve our understanding of a fundamental biological problem: how autotransporters are assembled into cellular membranes. Autotransporters are a large family of bacterial proteins that play key roles in the pathogenesis of several infectious diseases. Currently, the precise mechanism by which disease-causing molecules are assembled into the outer membranes of bacteria and mitochondria is poorly understood. The knowledge that the project develops may inform future strategies aimed at the rational treatment of bacterial and mitochondrial diseases.Read moreRead less
Slipping out unnoticed: a new bacterial lipoprotein transport system. Worldwide markets for biotechnology-derived products are projected to grow to at least $50 billion per year for the next 10 years. The cornerstone of biotechnology is the production of proteins. The applicant has discovered a new pathway for protein production in bacteria. The primary objective of this project is to use a diverse array of biochemical and biophysical techniques to understand how this new protein production pl ....Slipping out unnoticed: a new bacterial lipoprotein transport system. Worldwide markets for biotechnology-derived products are projected to grow to at least $50 billion per year for the next 10 years. The cornerstone of biotechnology is the production of proteins. The applicant has discovered a new pathway for protein production in bacteria. The primary objective of this project is to use a diverse array of biochemical and biophysical techniques to understand how this new protein production platform works. We will also assess this new pathway for the production of proteins of interest to the biotechnology sector. This project expects to determine how this system can be exploited for use in the growing Australian bioeconomy.Read moreRead less
YhcB, a crucial player in the control of bacterial cell envelope biogenesis. All life depends on a cell envelope to enclose the chemical reactions that make life possible. But how do cell envelopes grow? How each component of the cell envelope is incorporated into the envelope at the right amount and in the right time to prevent cell death, has been a longstanding question in bacteriology. Using a unique combination of high through put genetic screens and biochemical approaches, this project wil ....YhcB, a crucial player in the control of bacterial cell envelope biogenesis. All life depends on a cell envelope to enclose the chemical reactions that make life possible. But how do cell envelopes grow? How each component of the cell envelope is incorporated into the envelope at the right amount and in the right time to prevent cell death, has been a longstanding question in bacteriology. Using a unique combination of high through put genetic screens and biochemical approaches, this project will characterise a key regulator of cell envelope growth in Gram-negative bacteria. Knowledge arising from this research will provide insight into a fundamental process in bacteria, will develop new technology to probe protein interactions, and will provide novel avenues to solve infection in plants, humans and animals.Read moreRead less