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Regulation and function of a novel protein tyrosine phosphatase. A cell's ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular processes that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-depe ....Regulation and function of a novel protein tyrosine phosphatase. A cell's ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular processes that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-dependent signalling. We have identified a novel human protein tyrosine phosphatase and we aim to characterise its regulation and biological function.Read moreRead less
Characterisation of a novel protein tyrosine phosphatase. A cells ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular events that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-dependent signa ....Characterisation of a novel protein tyrosine phosphatase. A cells ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular events that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-dependent signalling. We have identified a novel human protein tyrosine phosphatase and we aim to characterise its function and the mechanism by which it is regulated.Read moreRead less
Insulin-like growth factor binding proteins: structure and ligand interactions. Insulin-like growth factors are important for normal growth and development. Their actions are regulated by a family of IGF binding proteins. In order to understand the mechanism of this regulation, the aim of this project is to determine the 3-dimensional structure of 2 IGFBPs in complex with IGFs. This will lead to a comprehensive understanding of this interaction that promises to provide important basic knowledge ....Insulin-like growth factor binding proteins: structure and ligand interactions. Insulin-like growth factors are important for normal growth and development. Their actions are regulated by a family of IGF binding proteins. In order to understand the mechanism of this regulation, the aim of this project is to determine the 3-dimensional structure of 2 IGFBPs in complex with IGFs. This will lead to a comprehensive understanding of this interaction that promises to provide important basic knowledge as well as having major implications for biotechnology, agriculture and health.Read moreRead less
Development of novel therapies for the treatment of cancer. Both aging and obesity are significant risk factors for cancer and are becoming a burden on the health care budget. The proposed novel cancer therapy will improve current cancer treatments by enhancing their efficacy, thereby reducing the required dose and minimizing side effects. Such an outcome would not only benefit the well being of the individual but would achieve significant health care cost savings.
Insertion and assembly of proteins and lipids into biological membranes. We propose a multi-disciplinary approach to this fundamental biological problem and have established collaborations with experts in the USA, UK and Austria. Benefits from this research program fall into two discrete types. Firstly, detailed knowledge of the mechanism what is now a poorly understood biological process of cellular membrane assembly, with the prospects for using the knowledge for intervention into diseases suc ....Insertion and assembly of proteins and lipids into biological membranes. We propose a multi-disciplinary approach to this fundamental biological problem and have established collaborations with experts in the USA, UK and Austria. Benefits from this research program fall into two discrete types. Firstly, detailed knowledge of the mechanism what is now a poorly understood biological process of cellular membrane assembly, with the prospects for using the knowledge for intervention into diseases such as cancer. Secondly, excellent outcomes are provided for the training of postgraduate students and research staff. This project entails cutting edge technology, and the development of skills not common in Australia.Read moreRead less
Functional characterization of SSB2: a novel single-stranded DNA binding protein. Defects in the DNA damage response pathway underpin many human genetic disorders and diseases. A detailed understanding of this pathway has enormous implications for future medicine. The proposed research will lead to functional characterization of a new protein, identify new concepts in DNA damage repair pathways, train young researchers and place Australia among the leaders in this internationally significant and ....Functional characterization of SSB2: a novel single-stranded DNA binding protein. Defects in the DNA damage response pathway underpin many human genetic disorders and diseases. A detailed understanding of this pathway has enormous implications for future medicine. The proposed research will lead to functional characterization of a new protein, identify new concepts in DNA damage repair pathways, train young researchers and place Australia among the leaders in this internationally significant and highly competitive area of research. It will underpin the national research priority of Promoting and Maintaining Good Health and help Australia capitalise on a plethora of opportunities for future economic and health benefits.Read moreRead less
Probing membrane rafts using surface-selective multi-dimensional microscopy. The results of this project will provide fundamental insights into the role played by domains in cell membranes in the regulation of membrane protein function. These insights will create new avenues in the biotechnology industry for development of novel therapeutics aimed at disruption of membrane protein-protein interactions that cause aberant cell signalling in disease states such as cancer.
The role of retinoic acid signalling in the development of the oesophageal epithelium. Oesophageal adenocarcinoma (OAC) is a disease with increasing incidence. The majority of patients with OAC are diagnosed when the cancer is at a late stage and therefore treatment options are limited, meaning the disease is almost invariably fatal. OAC arises from the precancerous condition, Barrett's oesophagus, which occurs as a consequence of chronic reflux, although the key processes driving its developmen ....The role of retinoic acid signalling in the development of the oesophageal epithelium. Oesophageal adenocarcinoma (OAC) is a disease with increasing incidence. The majority of patients with OAC are diagnosed when the cancer is at a late stage and therefore treatment options are limited, meaning the disease is almost invariably fatal. OAC arises from the precancerous condition, Barrett's oesophagus, which occurs as a consequence of chronic reflux, although the key processes driving its development are unknown. This project aims to better understand the critical first step in the progression to cancer and thus expand the scope for the development of therapies, particularly those aimed at early intervention, and tools that predict progression.Read moreRead less
Evolution of a protein fold from toxin to physiological regulator: an endogenous potassium channel blocker in humans. A potassium channel blocking peptide employed by sea anemones as a toxic component of their venom is also found in proteins from a number of higher organisms, including man. In most of these proteins the function of this toxin domain is unknown. This project aims to define the structure and function of this domain in a human protein, matrix metalloprotease 23, which has possible ....Evolution of a protein fold from toxin to physiological regulator: an endogenous potassium channel blocker in humans. A potassium channel blocking peptide employed by sea anemones as a toxic component of their venom is also found in proteins from a number of higher organisms, including man. In most of these proteins the function of this toxin domain is unknown. This project aims to define the structure and function of this domain in a human protein, matrix metalloprotease 23, which has possible roles in prostate and other cancers. Our results will not only be of interest in tracing the structural and functional evolution of this toxin domain but will also provide valuable clues to its role in both the normal physiological function of matrix metalloprotease 23, as well as its potential pathological role in cancer.Read moreRead less
Molecular control of apoptosis and protein homeostasis. A million cells are produced every second by cell division. At the same time a million cells commit suicide by a process called apoptosis. When cells fail to die when they should they can develop into cancers. In heart attacks, stroke and neurodegenerative diseases, many cells appear to activate their self destruct mechanism to die unnecessarily. Drugs that can cause cancer cells to kill themselves, or drugs that prevent cells dying when th ....Molecular control of apoptosis and protein homeostasis. A million cells are produced every second by cell division. At the same time a million cells commit suicide by a process called apoptosis. When cells fail to die when they should they can develop into cancers. In heart attacks, stroke and neurodegenerative diseases, many cells appear to activate their self destruct mechanism to die unnecessarily. Drugs that can cause cancer cells to kill themselves, or drugs that prevent cells dying when they shouldn't, would make a major impact on many important diseases. Understanding the molecular mechanisms of cell death is the first step towards developing these drugs.Read moreRead less