Crystal structure of Zika virus NS5 RNA-dependent RNA polymerase. 2017

Andre S Godoy, and Gustavo M A Lima, and Ketllyn I Z Oliveira, and Naiara U Torres, and Fernando V Maluf, and Rafael V C Guido, and Glaucius Oliva
Institute of Physics of São Carlos, University of São Paulo, Av. Joao Dagnone, 1100-Jardim Santa Angelina, São Carlos 13563-120, Brazil.

The current Zika virus (ZIKV) outbreak became a global health threat of complex epidemiology and devastating neurological impacts, therefore requiring urgent efforts towards the development of novel efficacious and safe antiviral drugs. Due to its central role in RNA viral replication, the non-structural protein 5 (NS5) RNA-dependent RNA-polymerase (RdRp) is a prime target for drug discovery. Here we describe the crystal structure of the recombinant ZIKV NS5 RdRp domain at 1.9 Å resolution as a platform for structure-based drug design strategy. The overall structure is similar to other flaviviral homologues. However, the priming loop target site, which is suitable for non-nucleoside polymerase inhibitor design, shows significant differences in comparison with the dengue virus structures, including a tighter pocket and a modified local charge distribution.

UI MeSH Term Description Entries
D011487 Protein Conformation The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain). Conformation, Protein,Conformations, Protein,Protein Conformations
D011995 Recombination, Genetic Production of new arrangements of DNA by various mechanisms such as assortment and segregation, CROSSING OVER; GENE CONVERSION; GENETIC TRANSFORMATION; GENETIC CONJUGATION; GENETIC TRANSDUCTION; or mixed infection of viruses. Genetic Recombination,Recombination,Genetic Recombinations,Recombinations,Recombinations, Genetic
D000071244 Zika Virus An arbovirus in the FLAVIVIRUS genus of the family FLAVIVIRIDAE. Originally isolated in the Zika Forest of UGANDA it has been introduced to Asia and the Americas. Virus, Zika,ZikV
D000998 Antiviral Agents Agents used in the prophylaxis or therapy of VIRUS DISEASES. Some of the ways they may act include preventing viral replication by inhibiting viral DNA polymerase; binding to specific cell-surface receptors and inhibiting viral penetration or uncoating; inhibiting viral protein synthesis; or blocking late stages of virus assembly. Antiviral,Antiviral Agent,Antiviral Drug,Antivirals,Antiviral Drugs,Agent, Antiviral,Agents, Antiviral,Drug, Antiviral,Drugs, Antiviral
D012324 RNA-Dependent RNA Polymerase An enzyme that catalyses RNA-template-directed extension of the 3'- end of an RNA strand by one nucleotide at a time, and can initiate a chain de novo. (Enzyme Nomenclature, 1992, p293) Nucleoside-Triphosphate:RNA Nucleotidyltransferase (RNA-directed),RNA Replicase,RNA-Dependent RNA Replicase,RNA-Directed RNA Polymerase,RNA Dependent RNA Polymerase,RNA Dependent RNA Replicase,RNA Directed RNA Polymerase,RNA Polymerase, RNA-Dependent,RNA Polymerase, RNA-Directed,RNA Replicase, RNA-Dependent,Replicase, RNA,Replicase, RNA-Dependent RNA
D017361 Viral Nonstructural Proteins Proteins encoded by a VIRAL GENOME that are not structural components of VIRUS PARTICLES. Some of these proteins may play roles within the infected cell during VIRUS REPLICATION or act in regulation of virus replication or VIRUS ASSEMBLY. Nonstructural Proteins, Viral,NS Proteins, Viral,Viral NS Proteins,Viral Non-Structural Proteins,Viral Nonstructural Protein,Viral Nonstructural Proteins NS1,Viral Nonstructural Proteins NS2,Nonstructural Protein, Viral,Viral Non Structural Proteins
D055808 Drug Discovery The process of finding chemicals for potential therapeutic use. Drug Prospecting,Discovery, Drug,Prospecting, Drug
D018360 Crystallography, X-Ray The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) X-Ray Crystallography,Crystallography, X Ray,Crystallography, Xray,X Ray Crystallography,Xray Crystallography,Crystallographies, X Ray,X Ray Crystallographies
D020134 Catalytic Domain The region of an enzyme that interacts with its substrate to cause the enzymatic reaction. Active Site,Catalytic Core,Catalytic Region,Catalytic Site,Catalytic Subunit,Reactive Site,Active Sites,Catalytic Cores,Catalytic Domains,Catalytic Regions,Catalytic Sites,Catalytic Subunits,Core, Catalytic,Cores, Catalytic,Domain, Catalytic,Domains, Catalytic,Reactive Sites,Region, Catalytic,Regions, Catalytic,Site, Active,Site, Catalytic,Site, Reactive,Sites, Active,Sites, Catalytic,Sites, Reactive,Subunit, Catalytic,Subunits, Catalytic

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