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Breakthrough in understanding of important blood protein
Date:7/31/2014

The human body contains a unique protein that has the unusual property of destroying itself after a few hours of existence - it must therefore be continually recreated and is no stable protein. The protein, called PAI-1, affects many physiological functions, including the dissolving of coagulated blood. If you get a blood clot, it is due to the fact that the a clot has accumulated in a blood vessel, and therefore PAI-1 is extremely important for the human body's survival in general and for helping people with a blood clot or other blood diseases in which coagulation plays a role.

Now researchers from the University of Southern Denmark and Aarhus University in Denmark describe exactly how PAI-1 protein behaves in its short life. With this new detailed knowledge, researchers will now have a better understanding of how the protein is regulated, and that allows for a way to better control when it causes more or less coagulation.

"The shape change of PAI-1, we study, is one of the largest shape changes known in the world of proteins. Our findings provide insight into the mechanism of this shape change, and it gives us a fundamental new knowledge about the workings of nature", says Thomas J. D. Jrgensen, associate professor and research group leader at the Department of Biochemistry and Molecular Biology, University of Southern Denmark.

Along with postdoctoral researcher Morten Beck Trelle and their colleagues, postdoctoral researcher Jeppe B. Madsen and Professor Peter A. Andreasen, Department of Molecular Biology and Genetics, Aarhus University, he has published the findings in the prestigious journal Angewandte Chemie. The article is selected by the journal to be particularly important and has therefore been termed "Hot Paper". Morten Beck Trelle is first author.

Researchers now know that if you lack PAI-1 proteins, you will be at increased risk of bleeding. Conversely, you have an increased risk of blood clots i
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Contact: Birgitte Svennevig
birs@sdu.dk
University of Southern Denmark
Source:Eurekalert  

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