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Open data
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Basic information
| Entry | Database: PDB / ID: 5lsf | ||||||
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| Title | Sacbrood honeybee virus | ||||||
Components |
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Keywords | VIRUS / Iflaviridae / external VP4 | ||||||
| Function / homology | Function and homology informationhost cell membrane / virion component / viral capsid / RNA helicase activity / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / structural molecule activity / proteolysis ...host cell membrane / virion component / viral capsid / RNA helicase activity / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / structural molecule activity / proteolysis / RNA binding / ATP binding / membrane Similarity search - Function | ||||||
| Biological species | Sacbrood virus | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.1 Å | ||||||
Authors | Plevka, P. / Veselikova, M. | ||||||
| Funding support | Czech Republic, 1items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2018Title: Virion structure and genome delivery mechanism of sacbrood honeybee virus. Authors: Michaela Procházková / Tibor Füzik / Karel Škubník / Jana Moravcová / Zorica Ubiparip / Antonín Přidal / Pavel Plevka / ![]() Abstract: Infection by sacbrood virus (SBV) from the family Iflaviridae is lethal to honey bee larvae but only rarely causes the collapse of honey bee colonies. Despite the negative effect of SBV on honey ...Infection by sacbrood virus (SBV) from the family Iflaviridae is lethal to honey bee larvae but only rarely causes the collapse of honey bee colonies. Despite the negative effect of SBV on honey bees, the structure of its particles and mechanism of its genome delivery are unknown. Here we present the crystal structure of SBV virion and show that it contains 60 copies of a minor capsid protein (MiCP) attached to the virion surface. No similar MiCPs have been previously reported in any of the related viruses from the order Picornavirales. The location of the MiCP coding sequence within the SBV genome indicates that the MiCP evolved from a C-terminal extension of a major capsid protein by the introduction of a cleavage site for a virus protease. The exposure of SBV to acidic pH, which the virus likely encounters during cell entry, induces the formation of pores at threefold and fivefold axes of the capsid that are 7 Å and 12 Å in diameter, respectively. This is in contrast to vertebrate picornaviruses, in which the pores along twofold icosahedral symmetry axes are currently considered the most likely sites for genome release. SBV virions lack VP4 subunits that facilitate the genome delivery of many related dicistroviruses and picornaviruses. MiCP subunits induce liposome disruption in vitro, indicating that they are functional analogs of VP4 subunits and enable the virus genome to escape across the endosome membrane into the cell cytoplasm. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 5lsf.cif.gz | 179.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb5lsf.ent.gz | 139.3 KB | Display | PDB format |
| PDBx/mmJSON format | 5lsf.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 5lsf_validation.pdf.gz | 446.3 KB | Display | wwPDB validaton report |
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| Full document | 5lsf_full_validation.pdf.gz | 454.1 KB | Display | |
| Data in XML | 5lsf_validation.xml.gz | 33.2 KB | Display | |
| Data in CIF | 5lsf_validation.cif.gz | 47.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ls/5lsf ftp://data.pdbj.org/pub/pdb/validation_reports/ls/5lsf | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 3863C ![]() 3865C ![]() 3866C ![]() 3867C ![]() 3881C ![]() 5oypC ![]() 6egvC ![]() 6egxC ![]() 6eh1C ![]() 6eiwC ![]() 1b35S S: Starting model for refinement C: citing same article ( |
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Assembly
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| Symmetry | Point symmetry: (Schoenflies symbol: I (icosahedral)) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Noncrystallographic symmetry (NCS) | NCS oper:
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Sacbrood virus
X-RAY DIFFRACTION
Czech Republic, 1items
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