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Title

Homology modeling and structural validation of tissue factor pathway inhibitor

 

Authors

Piyush Agrawal, Zoozeal Thakur & Mahesh Kulharia*

 

Affiliation

Centre for Bioinformatics, MD University, Rohtak 124001, India

 

Email

kulharia@gmail.com; *Corresponding author

 

Article Type

Hypothesis

 

Date

Received August 16, 2013; Accepted August 17, 2013; Published August 23, 2013

 

Abstract

Blood coagulation is a cascade of complex enzymatic reactions which involves specific proteins and cellular components to interact and prevent blood loss. The coagulation process begins by either “Tissue Dependent Pathway” (also known as extrinsic pathway) or by “contact activation pathway” (also known as intrinsic pathway). TFPI is an endogenous multivalent Kunitz type protease inhibitor which inhibits Tissue factor dependent pathway by inhibiting Tissue Factor:Factor VIIa (TF:FVIIa) complex and Factor Xa. TFPI is one of the most studied coagulation pathway inhibitor which has various clinical and potential therapeutic applications, however, its exact mechanism of inhibition is still unknown. Structure based mechanism elucidation is commonly employed technique in such cases. Therefore, in the current study the generated a complete TFPI structural model so as to understand the mechanistic details of it’s functioning. The model was checked for stereochemical quality by PROCHECK-NMR, WHATIF, ProSA, and QMEAN servers. The model was selected, energy minimized and simulated for 1.5ns. The result of the study may be a guiding point for further investigations on TFPI and its role in coagulation mechanism.  

 

Citation

Agrawal  et al. Bioinformation 9(16): 808-812 (2013)

 

Edited by

P Kangueane

 

ISSN

0973-2063

 

Publisher

Biomedical Informatics

 

License

This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.