skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A cocrystal structure of dengue capsid protein in complex of inhibitor

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America

Dengue virus (DENV) was listed as a top 10 public health threat by the World Health Organization in 2019. No clinically approved anti-DENV drug is currently available. Here we report the high-resolution cocrystal structure (1.5 Å) of the DENV-2 capsid protein in complex with an inhibitor that potently suppresses DENV-2 but not other DENV serotypes. The inhibitor induces a “kissing” interaction between two capsid dimers. The inhibitor-bound capsid tetramers are assembled inside virions, resulting in defective uncoating of nucleocapsid when infecting new cells. Resistant DENV-2 emerges through one mutation that abolishes hydrogen bonds in the capsid structure, leading to a loss of compound binding. Structure-based analysis has defined the amino acids responsible for the inhibitor’s inefficacy against other DENV serotypes. The results have uncovered an antiviral mechanism through inhibitor-induced tetramerization of the viral capsid and provided essential structural and functional knowledge for rational design of panserotype DENV capsid inhibitors.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Michigan Economic Development Corporation and the Michigan Technology Tri-Corridor; National Institutes of Health (NIH); Sealy & Smith Foundation; Kleberg Foundation; John S. Dunn Foundation; Amon G. Carter Foundation; Gillson Longenbaugh Foundation; Summerfield Robert Foundation; Centers for Disease Control and Prevention (CDC)
Grant/Contract Number:
AC02-06CH11357; 085P1000817; AI142759; AI134907; AI145617; UL1 TR001439; AI087856; AI137627
OSTI ID:
1657594
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 117, Issue 30; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

References (46)

Development of Direct-acting Antiviral and Host-targeting Agents for Treatment of Hepatitis B Virus Infection journal January 2019
Development and characterization of a stable luciferase dengue virus for high-throughput screening journal July 2011
PRODRG : a tool for high-throughput crystallography of protein–ligand complexes journal July 2004
An adenosine nucleoside inhibitor of dengue virus journal November 2009
A Novel Inhibitor of Dengue Virus Replication That Targets the Capsid Protein journal October 2012
The Helical Domains of the Stem Region of Dengue Virus Envelope Protein Are Involved in both Virus Assembly and Entry journal March 2011
A Dengue Fever Viremia Model in Mice Shows Reduction in Viral Replication and Suppression of the Inflammatory Response after Treatment with Antiviral Drugs journal March 2007
Inhibition of Hepatitis B Virus Replication by Drug-Induced Depletion of Nucleocapsids journal February 2003
The search for nucleoside/nucleotide analog inhibitors of dengue virus journal October 2015
Infectious cDNA Clone of the Epidemic West Nile Virus from New York City journal June 2002
The Phenix software for automated determination of macromolecular structures journal September 2011
Efficacy and safety of celgosivir in patients with dengue fever (CELADEN): a phase 1b, randomised, double-blind, placebo-controlled, proof-of-concept trial journal August 2014
Activity of Pleconaril against Enteroviruses journal September 1999
West Nile Virus Core Protein journal July 2004
Solution structure of dengue virus capsid protein reveals another fold journal March 2004
Antibody-dependent enhancement of severe dengue disease in humans journal November 2017
An Orally Bioavailable Oxime Ether Capsid Binder with Potent Activity against Human Rhinovirus journal July 2003
Structural insight into the Zika virus capsid encapsulating the viral genome journal February 2018
Hepatitis B virus core protein allosteric modulators can distort and disrupt intact capsids journal January 2018
Pervasive tertiary structure in the dengue virus RNA genome journal October 2018
Trapping of Hepatitis B Virus Capsid Assembly Intermediates by Phenylpropenamide Assembly Accelerators journal October 2010
Features and development of Coot journal March 2010
Characterization of the Mode of Action of a Potent Dengue Virus Capsid Inhibitor journal July 2014
Sulfamoylbenzamide Derivatives Inhibit the Assembly of Hepatitis B Virus Nucleocapsids journal April 2013
The global distribution and burden of dengue journal April 2013
REFMAC 5 for the refinement of macromolecular crystal structures journal March 2011
A heteroaryldihydropyrimidine activates and can misdirect hepatitis B virus capsid assembly journal May 2005
Characterization and structure-activity relationship analysis of a class of antiviral compounds that directly bind dengue virus capsid protein and are incorporated into virions journal July 2018
A Randomized, Double-Blind Placebo Controlled Trial of Balapiravir, a Polymerase Inhibitor, in Adult Dengue Patients journal July 2012
Efficacy and Long-Term Safety of a Dengue Vaccine in Regions of Endemic Disease journal September 2015
A highly potent long-acting small-molecule HIV-1 capsid inhibitor with efficacy in a humanized mouse model journal September 2019
Ten years of dengue drug discovery: Progress and prospects journal November 2013
Discovery of Dengue Virus NS4B Inhibitors journal May 2015
Dengue NS2A Protein Orchestrates Virus Assembly journal November 2019
A Randomized Controlled Trial of Chloroquine for the Treatment of Dengue in Vietnamese Adults journal August 2010
The Stem Region of Premembrane Protein Plays an Important Role in the Virus Surface Protein Rearrangement during Dengue Maturation journal October 2012
Clinical efficacy and safety of a novel tetravalent dengue vaccine in healthy children in Asia: a phase 3, randomised, observer-masked, placebo-controlled trial journal October 2014
Effects of Short-Course Oral Corticosteroid Therapy in Early Dengue Infection in Vietnamese Patients: A Randomized, Placebo-Controlled Trial journal August 2012
Zika Virus NS2A-Mediated Virion Assembly journal October 2019
Efficacy of a Tetravalent Dengue Vaccine in Children in Latin America journal January 2015
Structure mapping of dengue and Zika viruses reveals functional long-range interactions journal March 2019
Lovastatin for adult patients with dengue: protocol for a randomised controlled trial journal October 2012
The phenylpropenamide derivative AT-130 blocks HBV replication at the level of viral RNA packaging journal November 2007
Solution Structure of the HU Protein fromBacillus stearothermophilus journal December 1995
Dengue viruses and mononuclear phagocytes. II. Identity of blood and tissue leukocytes supporting in vitro infection journal July 1977
Phaser crystallographic software journal July 2007