Understanding sub-cellular systems at the atomic level. By extending the range of biomolecular systems that can be modelled computationally at the atomic level the project will enable important biomedical processes such as how bacterial toxins penetrate cell membranes and how protein hormones transmit signals into cells to be understood in unprecedented detail.
Bioactive Peptides as Pharmacological Tools and Novel Drug Leads. Bioactive peptides are produced by all organisms and play numerous critical physiological roles, including in cellular communication, host defence and capture of prey. Peptides have huge potential as tools for studying roles of signalling pathways and as novel drugs due to their high affinity and selectivity for various therapeutically relevant targets. However their use has been limited by poor in vivo stability. This project is ....Bioactive Peptides as Pharmacological Tools and Novel Drug Leads. Bioactive peptides are produced by all organisms and play numerous critical physiological roles, including in cellular communication, host defence and capture of prey. Peptides have huge potential as tools for studying roles of signalling pathways and as novel drugs due to their high affinity and selectivity for various therapeutically relevant targets. However their use has been limited by poor in vivo stability. This project is focused on studying structural features of a range of peptides and their contributions to both activity and to resistance against degradation, with the aim to develop stabilised bioactive peptide sequences for in vivo applications, allowing the full potential of peptides as drugs to be realised.Read moreRead less
The mechanism of membrane disruption by antimicrobial peptides. Bacterial resistance to antibiotics is a growing crisis in modern medicine. Antibacterial peptides from Australian frogs represent a new class of potent and selective antibacterial agents. Understanding how these peptides kill bacteria but not vertebrate cells could lead to the design of new drugs for pharmaceutical and/or clinical purposes.
A new source of bivalent molecules from nature. This project aims to describe a new class of naturally occurring multivalent molecules termed secreted cysteine-rich repeat proteins (SCREPs). Multivalency is a key feature of molecular interaction in biology, underlying the high specificity and potency found in many proteins. Focusing on bivalent peptides, the project will generate a database of bioactive SCREPs with similarity to known bioactive peptides, and develop new recombinant methods for t ....A new source of bivalent molecules from nature. This project aims to describe a new class of naturally occurring multivalent molecules termed secreted cysteine-rich repeat proteins (SCREPs). Multivalency is a key feature of molecular interaction in biology, underlying the high specificity and potency found in many proteins. Focusing on bivalent peptides, the project will generate a database of bioactive SCREPs with similarity to known bioactive peptides, and develop new recombinant methods for their production. The project will use advanced nuclear magnetic resonance spectroscopy to characterise members of this new class, providing new insights into the design of bivalent and multivalent peptides and establishing a new source of molecules with applications in the rapidly growing biotechnology sector.Read moreRead less
Making peptides orally bioavailable. Bioactive peptides are exceptionally useful molecules, however to fully realise their exciting applications key limitations need to be overcome: they can't be delivered orally and they do not last long in the body. This project aims to develop a molecular tag that can dramatically enhance both the oral absorption and time in the body of a peptide. This will include identifying the key elements of the tag required for function, the breadth of peptide cargoes i ....Making peptides orally bioavailable. Bioactive peptides are exceptionally useful molecules, however to fully realise their exciting applications key limitations need to be overcome: they can't be delivered orally and they do not last long in the body. This project aims to develop a molecular tag that can dramatically enhance both the oral absorption and time in the body of a peptide. This will include identifying the key elements of the tag required for function, the breadth of peptide cargoes it can be applied to and the mechanisms underlying this technology. The outcomes of this project will facilitate the future development of peptides for biotechnology, pharmaceutical and veterinary applications.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120102857
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Innovative chemical tools for the isolation, biochemical and structural analysis of biological macromolecular assemblies. This project will develop a new approach for determining the three dimensional structures of protein complexes. This project will demonstrate this approach by determining the structure of a protein complex involved in gene regulation and disease.
Australian Laureate Fellowships - Grant ID: FL150100146
Funder
Australian Research Council
Funding Amount
$2,977,310.00
Summary
Taking Australia from the farm to the pharm. Taking Australian from the farm to the pharm: This fellowship project aims to design novel drugs based on cyclic peptides that will be expressed in the seeds of plants to produce bio-pills — saving money for patients and the health care system. Plants produce unique cyclic peptides (mini-proteins) to protect themselves from pests and pathogens. This project aims to chemically redesign these peptides to produce stable protein-based pharmaceuticals that ....Taking Australia from the farm to the pharm. Taking Australian from the farm to the pharm: This fellowship project aims to design novel drugs based on cyclic peptides that will be expressed in the seeds of plants to produce bio-pills — saving money for patients and the health care system. Plants produce unique cyclic peptides (mini-proteins) to protect themselves from pests and pathogens. This project aims to chemically redesign these peptides to produce stable protein-based pharmaceuticals that can be eaten. It is hoped that these designer pharmaceuticals will be inexpensive, effective, easy to ingest and without the side effects of traditional drugs. The outcomes of this project are anticipated to be high-value drugs and agri-chemicals which will open up new high-value crops for Australian farmers and a new Australian ‘pharming’ industry.Read moreRead less
The chemistry and biology of circular proteins. This project aims to develop plant-derived ultra-stable cyclic peptides for pharmaceutical and agricultural applications. The project will use innovative new methodologies for discovery, chemical synthesis and engineering of these molecules. It is expected that the project will contribute to high value biotechnology and agricultural industries in Australia. The proposed outcomes will include fundamental new knowledge on the biosynthesis of circular ....The chemistry and biology of circular proteins. This project aims to develop plant-derived ultra-stable cyclic peptides for pharmaceutical and agricultural applications. The project will use innovative new methodologies for discovery, chemical synthesis and engineering of these molecules. It is expected that the project will contribute to high value biotechnology and agricultural industries in Australia. The proposed outcomes will include fundamental new knowledge on the biosynthesis of circular proteins in plants, new approaches for their discovery and technologies for applying them as drug leads and agricultural products.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120101550
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Understanding multidrug resistance: identifying the molecular basis of substrate and inhibitor transport by P-glycoprotein. Chemotherapy resistance causes 90 per cent of cancer deaths and is commonly triggered by the increased activity of P-glycoprotein, which controls the cellular clearance of drugs. This project will determine how P-glycoprotein recognises and transports drugs, essential knowledge for the design of anticancer agents that can stop chemotherapy resistance.
Discovery Early Career Researcher Award - Grant ID: DE160101142
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Unravelling the structural evolution of centipede toxins. The project intends to improve understanding of venom evolution in centipedes, and uncover new families of peptides with potential application in the agrochemical and pharmaceutical sectors. Venoms have emerged as a rich source of pharmacological tools with potential for development into therapeutics and bioinsecticides. However, venoms-based discovery has been limited by the narrow taxonomical range studied, and many groups of venomous a ....Unravelling the structural evolution of centipede toxins. The project intends to improve understanding of venom evolution in centipedes, and uncover new families of peptides with potential application in the agrochemical and pharmaceutical sectors. Venoms have emerged as a rich source of pharmacological tools with potential for development into therapeutics and bioinsecticides. However, venoms-based discovery has been limited by the narrow taxonomical range studied, and many groups of venomous animals remain overlooked. One such group is centipedes, whose venoms contain diverse novel toxins. This project aims to provide an insight into centipede toxin evolution, and establish a structure-based approach to understanding their evolution and structural diversification. The outcomes may contribute to our understanding of protein evolution and support the development of new products.Read moreRead less