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Discovery Early Career Researcher Award - Grant ID: DE230100700
Funder
Australian Research Council
Funding Amount
$429,449.00
Summary
A novel bacterial secretion system for applications in nanobiotechnology. This project aims to characterise a new molecular machine, called the S-Pump. Molecular machines drive the complex biology in all cells and are an exciting area of translational research, with broad potential for industrial applications. This project expects to provide fundamental insights into how bacterial S-Pumps contribute to antimicrobial resistance and enhancing food production. Expected outcomes include new tools fo ....A novel bacterial secretion system for applications in nanobiotechnology. This project aims to characterise a new molecular machine, called the S-Pump. Molecular machines drive the complex biology in all cells and are an exciting area of translational research, with broad potential for industrial applications. This project expects to provide fundamental insights into how bacterial S-Pumps contribute to antimicrobial resistance and enhancing food production. Expected outcomes include new tools for molecular machine discovery and identification of ways to adapt molecular machines for biotechnological applications. This work should enhance Australia-UK ties through collaboration, provide benefits toward nanobiotechnology and economic benefits through more efficient food production.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
Unlocking the potential of bacterial polymers by defining key determinants. Sugary structures that coat the surface of some bacteria, known as capsules, can be modified by bacterial viruses (bacteriophage) in the environment. For the bacterial genus Acinetobacter, this influences their use as naturally renewable 'green' biopolymers for remediating environments contaminated with petroleum hydrocarbons. This project aims to characterise crucial capsule polymerase enzymes using a combination of bio ....Unlocking the potential of bacterial polymers by defining key determinants. Sugary structures that coat the surface of some bacteria, known as capsules, can be modified by bacterial viruses (bacteriophage) in the environment. For the bacterial genus Acinetobacter, this influences their use as naturally renewable 'green' biopolymers for remediating environments contaminated with petroleum hydrocarbons. This project aims to characterise crucial capsule polymerase enzymes using a combination of bioinformatics and experimental methodologies to establish how bacteriophage influence Acinetobacter capsules. Outcomes include the development of an innovative genomics pipeline to detect capsule change, improving the use of living bacteria for bioremediation and sustainable rehabilitation of natural ecosystems.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240100842
Funder
Australian Research Council
Funding Amount
$455,057.00
Summary
Roles of emerging pollutants in spreading antimicrobial resistance. Antimicrobial resistance is a growing global challenge, yet the impact of environmental agents on the spread of antimicrobial resistance is poorly understood. Drawing on my recent findings and a tight integration of a model microbial ecology system, this project aims to investigate the impact of environmental pollutants on the colonisation and spread of antimicrobial resistance in situ ecological communities. This project expect ....Roles of emerging pollutants in spreading antimicrobial resistance. Antimicrobial resistance is a growing global challenge, yet the impact of environmental agents on the spread of antimicrobial resistance is poorly understood. Drawing on my recent findings and a tight integration of a model microbial ecology system, this project aims to investigate the impact of environmental pollutants on the colonisation and spread of antimicrobial resistance in situ ecological communities. This project expects to generate new knowledge at the forefront of research into antimicrobial resistance in a complex ecosystem. The outcomes should provide a deep mechanistic understanding of environmental factors associated with antimicrobial resistance, with applications to antimicrobial resistance risk management for One Health.Read moreRead less
Unlocking bacterial shapeshifting and its role in antimicrobial resistance. This project aims to combine advanced imaging with innovative microfluidics to identify how microbial shapeshifting can be exploited as a target for new antimicrobials. Infections that are hard to treat due to increasing antimicrobial resistance not only have an enormous, global impact on mammalian health, including livestock and humans, but also carry a growing economic burden. Advanced understanding of microbial life c ....Unlocking bacterial shapeshifting and its role in antimicrobial resistance. This project aims to combine advanced imaging with innovative microfluidics to identify how microbial shapeshifting can be exploited as a target for new antimicrobials. Infections that are hard to treat due to increasing antimicrobial resistance not only have an enormous, global impact on mammalian health, including livestock and humans, but also carry a growing economic burden. Advanced understanding of microbial life can propel urgently needed progress this area. Specifically, the project outcomes are expected to aid the development of next generation antibiotics. The new fundamental knowledge should also benefit translational prevention, identification and management efforts of a rising national and global health threat.Read moreRead less
Untangling the matrix of bacterial biofilms. This research aims to use forefront molecular microbiology and biophysical approaches to advance fundamental knowledge on bacterial biofilms. These bacterial clusters are held together by an extracellular matrix comprised of bacterial-derived fibrous protein and the polysaccharide cellulose, which imparts structural integrity and resistance to antimicrobials. The major goals of this project are to dissect how bacteria regulate production of the biofil ....Untangling the matrix of bacterial biofilms. This research aims to use forefront molecular microbiology and biophysical approaches to advance fundamental knowledge on bacterial biofilms. These bacterial clusters are held together by an extracellular matrix comprised of bacterial-derived fibrous protein and the polysaccharide cellulose, which imparts structural integrity and resistance to antimicrobials. The major goals of this project are to dissect how bacteria regulate production of the biofilm matrix, and examine how changes in the composition of the matrix alters its properties, including the penetration of antimicrobial peptides and antibiotics. The outcomes will help address the economic burden of difficult to treat industrial, environmental and biomedical biofilms.Read moreRead less
Data-led bioengineering to uncover hidden chemical wealth in bacteria. The soil bacteria Nocardia are an untapped source of industrially prized chemical compounds called natural products. This project aims to develop innovative bioprospecting genomics technologies built from the disciplines of microbiology, biochemistry and computational statistics to discover hundreds of new natural products in Nocardia. This project will unlock the diversity of potent new enzymes and molecules with high econom ....Data-led bioengineering to uncover hidden chemical wealth in bacteria. The soil bacteria Nocardia are an untapped source of industrially prized chemical compounds called natural products. This project aims to develop innovative bioprospecting genomics technologies built from the disciplines of microbiology, biochemistry and computational statistics to discover hundreds of new natural products in Nocardia. This project will unlock the diversity of potent new enzymes and molecules with high economic value that could include insecticides to protect crops, bioactives to fight diseases, or new enzymes for food and biofuel production. This research unlocks enormous hidden chemical potential in soil bacteria, to build sustainable national economic growth through innovative, high-value industrial chemical development.Read moreRead less
Hitting bacteria with a Bam: Lectin-Like Antimicrobials as New Antibiotics. Antibiotic resistance in disease-causing bacteria is a rapidly growing problem, making the development of new antibiotics of critical importance. This project aims to develop naturally produced lectin-like protein antibiotics as novel antimicrobial agents. To achieve this, the project will produce an extensive library of these antibiotics and test them for potency and specificity. Using cutting-edge techniques, it will d ....Hitting bacteria with a Bam: Lectin-Like Antimicrobials as New Antibiotics. Antibiotic resistance in disease-causing bacteria is a rapidly growing problem, making the development of new antibiotics of critical importance. This project aims to develop naturally produced lectin-like protein antibiotics as novel antimicrobial agents. To achieve this, the project will produce an extensive library of these antibiotics and test them for potency and specificity. Using cutting-edge techniques, it will determine how these antibiotics kill cells on a molecular and cellular level. It is anticipated this research will create the tools and knowledge required to exploit lectin-like protein antibiotics to fight bacterial infection, which will lead to their use in the prevention of crop and livestock losses due to disease.Read moreRead less
Manipulation of mitochondrial function by Legionella pneumophila. . The intracellular bacterial pathogen Legionella pneumophila co-evolved with eukaryotic hosts and has developed sophisticated mechanisms to manipulate human cell function – mitochondria in particular – by secreting >300 effector proteins through a specialised Type-IV system into the host cell. This research aims to understand the function of effector proteins targeted to mitochondria; delivering important new knowledge in host-pa ....Manipulation of mitochondrial function by Legionella pneumophila. . The intracellular bacterial pathogen Legionella pneumophila co-evolved with eukaryotic hosts and has developed sophisticated mechanisms to manipulate human cell function – mitochondria in particular – by secreting >300 effector proteins through a specialised Type-IV system into the host cell. This research aims to understand the function of effector proteins targeted to mitochondria; delivering important new knowledge in host-pathogen and mitochondrial biology and advanced cell biology tools. With most of the effector proteins yet to be characterised, benefits from the project will be to reveal specifically how these target mitochondria, and more broadly, how bacterial pathogens manipulate organelles for their survival.Read moreRead less
Rerunning the evolution of an ancient bacterial propeller. This project aims to measure how the propeller which drives bacterial swimming originated and then evolved. This project expects to generate new knowledge in molecular evolution using interdisciplinary techniques in synthetic biology and biophysics to resurrect ancient proteins and test how they can be directed to evolve in a contemporary host. Expected outcomes include the development of new types of flagellar motor for applied uses in ....Rerunning the evolution of an ancient bacterial propeller. This project aims to measure how the propeller which drives bacterial swimming originated and then evolved. This project expects to generate new knowledge in molecular evolution using interdisciplinary techniques in synthetic biology and biophysics to resurrect ancient proteins and test how they can be directed to evolve in a contemporary host. Expected outcomes include the development of new types of flagellar motor for applied uses in synbio and microfluidics, and new methods to resurrect ancient proteins and evolve their function for purpose. This should provide significant benefits by delivering a de novo molecular motor for custom applications and galvanise public interest in how this iconic molecular complex originated and evolved.Read moreRead less