2017
Structure of deformed wing virus, a major honey bee pathogen
ŠKUBNÍK, Karel; Jiří NOVÁČEK; Tibor FÜZIK; Antonin PRIDAL; Robert J. PAXTON et al.Základní údaje
Originální název
Structure of deformed wing virus, a major honey bee pathogen
Autoři
Vydání
Proceedings of the National Academy of Sciences of the United States of America, WASHINGTON, National Academy of Sciences, 2017, 0027-8424
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 9.504
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/17:00096848
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
colony collapse disorder; virus; structure; Apis mellifera; honey bee
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 2. 2018 10:01, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
The worldwide population of western honey bees (Apis mellifera) is under pressure from habitat loss, environmental stress, and pathogens, particularly viruses that cause lethal epidemics. Deformed wing virus (DWV) from the family Iflaviridae, together with its vector, the mite Varroa destructor, is likely the major threat to the world's honey bees. However, lack of knowledge of the atomic structures of iflaviruses has hindered the development of effective treatments against them. Here, we present the virion structures of DWV determined to a resolution of 3.1 angstrom using cryo-electron microscopy and 3.8 angstrom by X-ray crystallography. The C-terminal extension of capsid protein VP3 folds into a globular protruding (P) domain, exposed on the virion surface. The P domain contains an Asp-His-Ser catalytic triad that is, together with five residues that are spatially close, conserved among iflaviruses. These residues may participate in receptor binding or provide the protease, lipase, or esterase activity required for entry of the virus into a host cell. Furthermore, nucleotides of the DWV RNA genome interact with VP3 subunits. The capsid protein residues involved in the RNA binding are conserved among honey bee iflaviruses, suggesting a putative role of the genome in stabilizing the virion or facilitating capsid assembly. Identifying the RNA-binding and putative catalytic sites within the DWV virion structure enables future analyses of how DWV and other iflaviruses infect insect cells and also opens up possibilities for the development of antiviral treatments.
Návaznosti
| LM2010005, projekt VaV |
| ||
| LQ1601, projekt VaV |
|