Analysis of calcitonin - receptor interactions

Funding Activity

Website
http://purl.org/au-research/grants/nhmrc/145703

Funding Status
Closed

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Funded Activity Summary

Receptors form a basic intermediary as the acceptor site for signals that are transmitted between the cells that make up our body. Modulation of receptors, therefore, forms a key target in our ability to treat disease. The largest class of receptors is the superfamily of G protein-coupled receptors (GPCRs), which transmit signals within a cell via proteins called G proteins. GPCRs form between 1 and 5% of the entire repertoire of human genes. One group of GPCRs provide the target for small protein molecules that circulate through the body. One such circulating molecule is calcitonin, a peptide that plays an important role in maintaining circulating calcium levels in the body, which is essential for proper maintenance of the skeleton. As a consequence of this action, calcitonin is an important clinically used tool in the treatment of bone disease such as osteoporosis and Paget's disease. Due to the molecular nature of calcitonin and its receptor (and other related receptors) that have a broad, complex mechanism of interaction, we have very little definitive information on how calcitonin interfaces with its receptor to signal to target cells. The current project utilises a novel method of permanently linking calcitonin to its receptor, allowing identification of how the two components come together. This information provides important fundamentals for understanding how this and related receptors work and the potential for rational design of improved therapeutic tools.

Funded Activity Details

Start Date: 01-01-2001

End Date: 01-01-2003

Funding Scheme: NHMRC Project Grants

Funding Amount: $227,036.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Medical biochemistry - carbohydrates

ANZSRC Socio-Economic Objective (SEO)

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Other Keywords

Diabetes | G-protein coupled receptor | Humoral hypercalcemia of malignancy | Osteoporosis | Paget's disease | calcitonin | calcitonin receptor | photoactive cross-linking | receptor mutation

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