Total Synthesis of the Microsclerodermins: Anti-fungal Cyclic Peptides. Fungal infections are one of the major causes of morbidity and mortality in the increasing immunocompromised patient population, which includes AIDS, chemotherapy and organ transplant patients. The aim of this project is to discover new anti-fungal treatments for drug-resistant pathogenic fungal infections, based on the microsclerodermin family of natural products. The small quantity of microsclerodermin isolated from the na ....Total Synthesis of the Microsclerodermins: Anti-fungal Cyclic Peptides. Fungal infections are one of the major causes of morbidity and mortality in the increasing immunocompromised patient population, which includes AIDS, chemotherapy and organ transplant patients. The aim of this project is to discover new anti-fungal treatments for drug-resistant pathogenic fungal infections, based on the microsclerodermin family of natural products. The small quantity of microsclerodermin isolated from the natural environment hampers the development of anti-fungal agents from this natural product. Innovative synthetic methods will be developed to prepare large quantities of microsclerodermins and related compounds for biological testing, thereby furthering the development of this promising class of anti-fungal drugs.Read moreRead less
Inhibitors of enzymes in the lysine biosynthetic pathway. Recent reports of increasing bacterial resistance to antibiotics highlight the need for continual development of new antibacterial agents. Inhibitors of the biosynthesis of the amino acid lysine - an essential component of bacterial proteins and cell wall - may provide a novel class of antibiotics. This project describes investigations of the mechanism of the first two enzymes in the lysine biosynthetic pathway and the design and synthesi ....Inhibitors of enzymes in the lysine biosynthetic pathway. Recent reports of increasing bacterial resistance to antibiotics highlight the need for continual development of new antibacterial agents. Inhibitors of the biosynthesis of the amino acid lysine - an essential component of bacterial proteins and cell wall - may provide a novel class of antibiotics. This project describes investigations of the mechanism of the first two enzymes in the lysine biosynthetic pathway and the design and synthesis of inhibitors of these enzymes.Read moreRead less
Design and Development of HIV-1 Integrase Inhibitors Based on a Natural Product Lead. HIV/AIDS is a significant health problem with over 40 million people infected with HIV worldwide. Resistance to current drugs is rising rapidly and new therapeutics are urgently needed. This project will bring together local expertise in organic synthesis and virology in order to develop new and better treatments for HIV/AIDS. Ultimately, Australians with HIV may benefit directly from anti-HIV compounds produce ....Design and Development of HIV-1 Integrase Inhibitors Based on a Natural Product Lead. HIV/AIDS is a significant health problem with over 40 million people infected with HIV worldwide. Resistance to current drugs is rising rapidly and new therapeutics are urgently needed. This project will bring together local expertise in organic synthesis and virology in order to develop new and better treatments for HIV/AIDS. Ultimately, Australians with HIV may benefit directly from anti-HIV compounds produced and may also benefit from advances in our understanding of this elusive virus resulting from the project.Read moreRead less
Mechanisms and consequences of oxidation of glycosaminoglycans, proteins and proteoglycans by myeloperoxidase-derived oxidants. Atherosclerosis (hardening of the arteries) is responsible for the death of 40% of the population of developed, and developing, countries including Australia. Rupture of the fibrous cap of atherosclerotic lesions is responsible for most sudden deaths from heart disease and stokes, but is a poorly understood process. Evidence has been presented for a role for oxidation r ....Mechanisms and consequences of oxidation of glycosaminoglycans, proteins and proteoglycans by myeloperoxidase-derived oxidants. Atherosclerosis (hardening of the arteries) is responsible for the death of 40% of the population of developed, and developing, countries including Australia. Rupture of the fibrous cap of atherosclerotic lesions is responsible for most sudden deaths from heart disease and stokes, but is a poorly understood process. Evidence has been presented for a role for oxidation reactions in weakening the structure of lesions and making them prone to rupture. Little is known about the fundamental chemistry of such damage; this will be addressed in the proposed program. The data obtained will underpin the development of new preventative and protective strategies to minimise lesion rupture and deaths from this major disease.Read moreRead less
Cross-linked Tyrosine Residues in Peptides and Proteins. Many peptides and proteins have recently been found to contain unusual structural modifications, commonly in the form of cross-linked tyrosine residues. The aims of this project are to design and synthesise examples of these cross-linked tyrosine structures, thereby enabling the preparation of models of the modified proteins. Outcomes of this research will include an increased understanding of the relationship between the three-dimensional ....Cross-linked Tyrosine Residues in Peptides and Proteins. Many peptides and proteins have recently been found to contain unusual structural modifications, commonly in the form of cross-linked tyrosine residues. The aims of this project are to design and synthesise examples of these cross-linked tyrosine structures, thereby enabling the preparation of models of the modified proteins. Outcomes of this research will include an increased understanding of the relationship between the three-dimensional structure and biological activity of peptides/proteins, the generation of lead compounds for new anti-bacterial and anti-fungal pharmaceuticals, and the preparation of biological 'markers' of the processes involved in neurodegenerative diseases and aging.Read moreRead less
Investigating the molecular function of alpha-Haemoglobin stabilising protein. The research described in this proposal will provide new insights into haemoglobin regulation and redox chemistry in erythrocytes. Deregulation of these processes gives rise to a number of debilitating diseases, including varieties of anaemia and thalassaemia-in Australia it is estimated that 3% of the population could be carriers of b-thalassaemia mutations. Given the contribution of free aHb to the pathology of b-th ....Investigating the molecular function of alpha-Haemoglobin stabilising protein. The research described in this proposal will provide new insights into haemoglobin regulation and redox chemistry in erythrocytes. Deregulation of these processes gives rise to a number of debilitating diseases, including varieties of anaemia and thalassaemia-in Australia it is estimated that 3% of the population could be carriers of b-thalassaemia mutations. Given the contribution of free aHb to the pathology of b-thalassaemia, understanding the specific aHb-binding factor, AHSP is a goal of national significance. In the long term, manipulation of AHSP function through gene therapy may have a direct role in the treatment of thalassaemia.Read moreRead less
Mechanisms and consequences of myeloperoxidase-mediated damage to glycosaminoglycans, proteins and proteoglycans. Atherosclerosis (hardening of the arteries) is responsible for the death of 40% of the population of developed, and developing, countries including Australia. Rupture of the fibrous cap of atherosclerotic lesions is responsible for most sudden deaths from heart disease and stokes, but is a poorly understood process. Evidence has been presented for a role for oxidation reactions in we ....Mechanisms and consequences of myeloperoxidase-mediated damage to glycosaminoglycans, proteins and proteoglycans. Atherosclerosis (hardening of the arteries) is responsible for the death of 40% of the population of developed, and developing, countries including Australia. Rupture of the fibrous cap of atherosclerotic lesions is responsible for most sudden deaths from heart disease and stokes, but is a poorly understood process. Evidence has been presented for a role for oxidation reactions in weakening the structure of lesions and making them prone to rupture. Little is known about the fundamental chemistry of such damage; this will be addressed in the proposed program. The data obtained will underpin the development of new preventative and protective strategies to minimise lesion rupture and deaths from this major disease.Read moreRead less
The Development of Computer-Aided Molecular Modelling and Drug Design Techniques for Flexible Enzyme Targets - New Anti-HIV Agents. The dynamic motion of proteins upon binding of small molecules is crucial in many cases for the function of the protein or for the function of drugs acting upon the protein. Current methods in computer-aided design of small molecules binding to proteins do not take this protein flexibility fully into account. This project intends to develop molecular dynamics simula ....The Development of Computer-Aided Molecular Modelling and Drug Design Techniques for Flexible Enzyme Targets - New Anti-HIV Agents. The dynamic motion of proteins upon binding of small molecules is crucial in many cases for the function of the protein or for the function of drugs acting upon the protein. Current methods in computer-aided design of small molecules binding to proteins do not take this protein flexibility fully into account. This project intends to develop molecular dynamics simulation techniques for this purpose, initially using the HIV reverse transcriptase enzyme as the target protein. The methods developed will, however, be universally applicable. The project further aims to design, synthesise and test novel medicinal agents specifically against drug resistance in HIV.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0454050
Funder
Australian Research Council
Funding Amount
$312,205.00
Summary
Quarantine bioassay insectory. A climate-controlled, multi unit quarantine greenhouse to be located at the UWS Hawkesbury campus will support investigations into novel strategies for control of agricultural pests, particularly via bioassay. This world-class facility will enable researchers from Universities of Southern Cross, Sydney and Western Sydney to work with contained virulent/resistant strains of agricultural pests, and genetically modified organisms. It will enhance already existing coll ....Quarantine bioassay insectory. A climate-controlled, multi unit quarantine greenhouse to be located at the UWS Hawkesbury campus will support investigations into novel strategies for control of agricultural pests, particularly via bioassay. This world-class facility will enable researchers from Universities of Southern Cross, Sydney and Western Sydney to work with contained virulent/resistant strains of agricultural pests, and genetically modified organisms. It will enhance already existing collaboration between the institutions in the areas of: bioactives of biological origin, novel pesticide action, pesticide resistance management and new crop varieties, and will ensure better utilisation of existing excellent facilities within the consortium.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0453832
Funder
Australian Research Council
Funding Amount
$550,910.00
Summary
New directions in biomolecular mass spectrometry. The combined UoW/ANU mass spectrometry facility supports a range of research projects in high priority areas including proteomics, mechanisms of aging, anticancer drugs and pathogenicity. The facility has several key deficiencies: 1) the ability to study very high molecular weight biomolecular complexes, 2) the ability to study ion-molecule interactions that have implications in mechanisms of chemistry in nature, and 3) researchers at ANU lack es ....New directions in biomolecular mass spectrometry. The combined UoW/ANU mass spectrometry facility supports a range of research projects in high priority areas including proteomics, mechanisms of aging, anticancer drugs and pathogenicity. The facility has several key deficiencies: 1) the ability to study very high molecular weight biomolecular complexes, 2) the ability to study ion-molecule interactions that have implications in mechanisms of chemistry in nature, and 3) researchers at ANU lack essential walk-up access to high sensitivity protein sequence analysis (MS/MS). The placement of resources that address these deficiencies in one geographical region and collaboration between these institutions will produce a research interaction unique in Australia.Read moreRead less