Structural insight and flexible features of NS5 proteins from all four serotypes of Dengue virus in solution

Infection by the four serotypes of Dengue virus (DENV‐1 to DENV‐4) causes an important arthropod‐borne viral disease in humans. The multifunctional DENV nonstructural protein 5 (NS5) is essential for capping and replication of the viral RNA and harbours a methyltransferase (MTase) domain and an RNA‐...

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Veröffentlicht in:Acta crystallographica. Section D, Biological crystallography. Biological crystallography., 2015-11, Vol.71 (11), p.2309-2327
Hauptverfasser: Saw, Wuan Geok, Tria, Giancarlo, Grüber, Ardina, Subramanian Manimekalai, Malathy Sony, Zhao, Yongqian, Chandramohan, Arun, Srinivasan Anand, Ganesh, Matsui, Tsutomu, Weiss, Thomas M., Vasudevan, Subhash G., Grüber, Gerhard
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container_issue 11
container_start_page 2309
container_title Acta crystallographica. Section D, Biological crystallography.
container_volume 71
creator Saw, Wuan Geok
Tria, Giancarlo
Grüber, Ardina
Subramanian Manimekalai, Malathy Sony
Zhao, Yongqian
Chandramohan, Arun
Srinivasan Anand, Ganesh
Matsui, Tsutomu
Weiss, Thomas M.
Vasudevan, Subhash G.
Grüber, Gerhard
description Infection by the four serotypes of Dengue virus (DENV‐1 to DENV‐4) causes an important arthropod‐borne viral disease in humans. The multifunctional DENV nonstructural protein 5 (NS5) is essential for capping and replication of the viral RNA and harbours a methyltransferase (MTase) domain and an RNA‐dependent RNA polymerase (RdRp) domain. In this study, insights into the overall structure and flexibility of the entire NS5 of all four Dengue virus serotypes in solution are presented for the first time. The solution models derived revealed an arrangement of the full‐length NS5 (NS5FL) proteins with the MTase domain positioned at the top of the RdRP domain. The DENV‐1 to DENV‐4 NS5 forms are elongated and flexible in solution, with DENV‐4 NS5 being more compact relative to NS5 from DENV‐1, DENV‐2 and DENV‐3. Solution studies of the individual MTase and RdRp domains show the compactness of the RdRp domain as well as the contribution of the MTase domain and the ten‐residue linker region to the flexibility of the entire NS5. Swapping the ten‐residue linker between DENV‐4 NS5FL and DENV‐3 NS5FL demonstrated its importance in MTase–RdRp communication and in concerted interaction with viral and host proteins, as probed by amide hydrogen/deuterium mass spectrometry. Conformational alterations owing to RNA binding are presented.
doi_str_mv 10.1107/S1399004715017721
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Section D, Biological crystallography.</title><addtitle>Acta Crystallographica D</addtitle><description>Infection by the four serotypes of Dengue virus (DENV‐1 to DENV‐4) causes an important arthropod‐borne viral disease in humans. The multifunctional DENV nonstructural protein 5 (NS5) is essential for capping and replication of the viral RNA and harbours a methyltransferase (MTase) domain and an RNA‐dependent RNA polymerase (RdRp) domain. In this study, insights into the overall structure and flexibility of the entire NS5 of all four Dengue virus serotypes in solution are presented for the first time. The solution models derived revealed an arrangement of the full‐length NS5 (NS5FL) proteins with the MTase domain positioned at the top of the RdRP domain. The DENV‐1 to DENV‐4 NS5 forms are elongated and flexible in solution, with DENV‐4 NS5 being more compact relative to NS5 from DENV‐1, DENV‐2 and DENV‐3. 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source MEDLINE; Wiley Online Library Journals Frontfile Complete; Alma/SFX Local Collection
subjects Amino Acid Sequence
dengue
Dengue - virology
Dengue fever
Dengue virus
Dengue Virus - chemistry
Deuterium
Elongation
flavivirus
Flexibility
Humans
Mathematical models
methyltransferase
Models, Molecular
Molecular Sequence Data
nonstructural proteins
Protein Conformation
protein flexibility
Proteins
Replication
Research Papers
Ribonucleic acids
RNA polymerase
Scattering, Small Angle
Sequence Alignment
Serogroup
small-angle X-ray scattering
Viral diseases
Viral Nonstructural Proteins - chemistry
viral polymerase
X-Ray Diffraction
title Structural insight and flexible features of NS5 proteins from all four serotypes of Dengue virus in solution
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