Glycan-glycan Interactions Between Bacterial Pathogens And Host Cells: A Novel Mechanism Of Bacterial Adherence, A New Opportunity For Strategies To Treat And Prevent Disease And A New Paradigm In Interactions Between Macromolecules.
Funder
National Health and Medical Research Council
Funding Amount
$1,059,344.00
Summary
Cell surface carbohydrates are ubiquitous throughout nature. Human cell surface carbohydrates are specifically targeted by microbial proteins. These interactions are crucial in causing disease. We have recently shown that the carbohydrates on our cells and those on pathogenic bacteria can interact with one another. Understanding the nature and role of these newly discovered interactions may lead to strategies to block them via new drugs and vaccines.
Characterization Of A Novel Secretion And Attachment System Necessary For The Formation Of A Virulence Coat In Porphyromonas Gingivalis
Funder
National Health and Medical Research Council
Funding Amount
$828,857.00
Summary
In this study we will characterize a novel bacterial secretion system that we have discovered. This system mediates the secretion of proteins from the bacterial cell and their attachment to the cell surface. This system is essential for the virulence of a bacterium associated with severe gum disease. The chacterization of this system may offer opportunities for the development of new treatments to target this disease.
Structural And Functional Analysis Of Glucosyltransferases (Gtr) Involved In O-antigen Modification Of Shigella Flexneri
Funder
National Health and Medical Research Council
Funding Amount
$340,976.00
Summary
Shigellosis caused by Shigella flexneri is a medically significant disease in developing countries. Serotypes of S. flexneri are determined by bacterial cell-surface polysaccharides called O-antigens. Bacterial viruses carry the genes which confer O-antigen modification giving rise to different serotypes. The project will address fundamental processes related to the O-antigen modification by studying structure and function of the enzymes encoded by the O-antigen modification gene cluster.