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Title: Toxins in thrombosis and haemostasis: Potential beyond imagination
Authors: Kini, R.M. 
Keywords: Apyrase
Collagen receptor
Factor Xa inhibitor
Thrombin inhibitor
Issue Date: Jul-2011
Source: Kini, R.M. (2011-07). Toxins in thrombosis and haemostasis: Potential beyond imagination. Journal of Thrombosis and Haemostasis 9 (1 S) : 195-208. ScholarBank@NUS Repository.
Abstract: Exogenous factors isolated from venoms of snakes and saliva of haematophagous animals that affect thrombosis and haemostasis have contributed significantly to the development of diagnostic agents, research tools and life-saving drugs. Here, I discuss recent advances in the discovery, structural and functional characterisation, and mechanism of action of new procoagulant and anti-haemostatic proteins. In nature, these factors have evolved to target crucial 'bottlenecks' in the coagulation cascade and platelet aggregation. Several simple protein scaffolds are used to target a wide variety of target proteins and receptors exhibiting functional divergence. Different protein scaffolds have also evolved to target identical, physiologically relevant key enzymes or receptors exhibiting functional convergence. At times, exogenous factors bind to the same target protein, but at distinct sites, to differentially attenuate their functions exhibiting mechanistic divergence within the same family of proteins. The structure-function relationships of these factors are subtle and complicated but represent an exciting challenge. These studies provide ample opportunities to design highly specific and precise ligands to achieve desired biological target function. Although only a small number of them have been characterised to date, the molecular and mechanical diversities of these exogenous factors and their contributions to understanding molecular and cellular events in thrombosis and haemostasis as well as developing diagnostic and research tools and therapeutic agents, is outstanding. Based on the current status, I have attempted to identify future potential and prospects in this area of research. © 2011 International Society on Thrombosis and Haemostasis.
Source Title: Journal of Thrombosis and Haemostasis
ISSN: 15387933
DOI: 10.1111/j.1538-7836.2011.04279.x
Appears in Collections:Staff Publications

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