Insight into Structural Organization and Protein-Protein Interaction of Non Structural 3 (NS3) Proteins from Dengue Serotypes

ISSN: 1873-4316 (Online)
ISSN: 1389-2010 (Print)

Volume 18, 15 Issues, 2017

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Current Pharmaceutical Biotechnology

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Zeno Foldes-Papp
Urban Clinical Center Soltau
University teaching hospital of Hamburg

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Insight into Structural Organization and Protein-Protein Interaction of Non Structural 3 (NS3) Proteins from Dengue Serotypes

Current Pharmaceutical Biotechnology, 15(2): 156-172.

Author(s): Pratap Parida, R.N.S Yadav and Kishore Sarma.

Affiliation: Centre for Studies in Biotechnology, Dibrugarh University, Assam-786004, India.


Dengue infections produce a distinct character of virus-induced intracellular membrane alterations which are associated with the viral replication machinery. Currently, the NS3 protein is being targeted for antiviral therapy against dengue. NS3 protein of dengue virus interacts with nuclear receptor binding protein (NRBP) of human causing cell trafficking between the Endoplasmic Reticulum (ER) and Golgi, which interacts with Rac3, a member of the Rho-GTPase family. No crystal structure of the NRBP is available for any species, thus limiting the complete understanding of structure- function relationships of this protein. The present study deals with the molecular modeling of the viral protein (NS3 of DENV1-4), the host protein (NRBP) and their interactions through protein-protein docking study. Theoretical threedimensional structures of the NRBP and NS3 were modeled using the Modeller 9v8, and the evaluated models were docked using GRAMM-X to study the mode of protein-protein interaction (NRBP as receptor and NS3 as ligand). The docked docking complexes were further evaluated for interaction analysis by the RosettaDock Server. Suface and interface residues were observed along with hydrogen and hydrophobic interaction. The conserved residues forming hydrogen interaction of NRBP with DENV1-4 serotypes were found to be GLN 305, SER 363 and GLN 379.


Dengue virus, homology modelling, protein-protein interaction, surface and interface interaction, structural super imposition.

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Article Details

Volume: 15
Issue Number: 2
First Page: 156
Last Page: 172
Page Count: 17
DOI: 10.2174/1389201015666140608142728
Price: $58
Pharmaceutical Microbiology 2017

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