+Open data
-Basic information
Entry | Database: PDB / ID: 2qqp | ||||||
---|---|---|---|---|---|---|---|
Title | Crystal Structure of Authentic Providence Virus | ||||||
Components |
| ||||||
Keywords | VIRUS / capsid / coat protein / protein-RNA complex / beta barrel / Ig-like domain / tetravirus / tetraviridae / icosahedral virus / quasiequivalence / auto-catalytic cleavage / auto proteolysis | ||||||
Function / homology | Function and homology information T=3 icosahedral viral capsid / identical protein binding / metal ion binding Similarity search - Function | ||||||
Biological species | Providence virus Synthetic construct (others) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 3.8 Å | ||||||
Authors | Speir, J.A. / Taylor, D.J. / Johnson, J.E. | ||||||
Citation | Journal: Structure / Year: 2010 Title: Evolution in action: N and C termini of subunits in related T = 4 viruses exchange roles as molecular switches. Authors: Speir, J.A. / Taylor, D.J. / Natarajan, P. / Pringle, F.M. / Ball, L.A. / Johnson, J.E. #1: Journal: Virology / Year: 2003 Title: Providence virus: a new member of the Tetraviridae that infects cultured insect cells Authors: Pringle, F.M. / Johnson, K.N. / Goodman, C.L. / McIntosh, A.H. / Ball, L.A. | ||||||
History |
|
-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
---|
-Downloads & links
-Download
PDBx/mmCIF format | 2qqp.cif.gz | 417 KB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb2qqp.ent.gz | 336.5 KB | Display | PDB format |
PDBx/mmJSON format | 2qqp.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 2qqp_validation.pdf.gz | 517.8 KB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 2qqp_full_validation.pdf.gz | 759.1 KB | Display | |
Data in XML | 2qqp_validation.xml.gz | 107 KB | Display | |
Data in CIF | 2qqp_validation.cif.gz | 146.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/qq/2qqp ftp://data.pdbj.org/pub/pdb/validation_reports/qq/2qqp | HTTPS FTP |
-Related structure data
Related structure data | 1ohfS S: Starting model for refinement |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 |
| x 60|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2 |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3 |
| x 5|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
4 |
| x 6|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
5 |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
6 |
| x 30|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Unit cell |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: (Schoenflies symbol: I (icosahedral)) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Noncrystallographic symmetry (NCS) | NCS oper:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | Deposited coord. are the asym. unit of an icosahedral virus capsid. The crystal asym. unit contains 30 copies of deposited coord. (half virus capsid). Biological unit is an icosahedral virus particle, which contains 60 copies of deposited coord. |
-Components
#1: Protein | Mass: 60696.430 Da / Num. of mol.: 4 / Source method: isolated from a natural source Details: corn earworm, Lepidoptera, Noctuidae, MG8 (mid gut) cell line Source: (natural) Providence virus / Strain: BCIRL-HZ / References: UniProt: Q80IX5 #2: Protein | Mass: 7447.766 Da / Num. of mol.: 4 / Source method: isolated from a natural source Details: corn earworm, Lepidoptera, Noctuidae, MG8 (mid gut) cell line Source: (natural) Providence virus / Strain: BCIRL-HZ / References: UniProt: Q80IX5 #3: RNA chain | | Mass: 1179.706 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Synthetic construct (others) #4: Chemical | #5: Water | ChemComp-HOH / | |
---|
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
---|
-Sample preparation
Crystal | Density Matthews: 2.5 Å3/Da / Density % sol: 51 % | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Crystal grow | Temperature: 295 K / Method: vapor diffusion, hanging drop / pH: 7.5 Details: 2 ul of 7mg/ml virus solution (20mM Tris pH 7.5) added to 2 ul of 100mM Tris pH 7.5, 0.5-1.5% PEG8000, 10-100mM NaCl. Plates about 0.1 mm in size appear in 1-4 weeks., vapor diffusion, ...Details: 2 ul of 7mg/ml virus solution (20mM Tris pH 7.5) added to 2 ul of 100mM Tris pH 7.5, 0.5-1.5% PEG8000, 10-100mM NaCl. Plates about 0.1 mm in size appear in 1-4 weeks., vapor diffusion, hanging drop, temperature 295K | ||||||||||||||||||||
Components of the solutions |
|
-Data collection
Diffraction | Mean temperature: 100 K | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction source | Source: SYNCHROTRON / Site: SSRL / Beamline: BL11-1 / Wavelength: 1 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Type: ADSC QUANTUM 315 / Detector: CCD | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Av σ(I) over netI: 3.6 / Number: 354357 / Rmerge(I) obs: 0.158 / Χ2: 0.91 / D res high: 3.8 Å / D res low: 50 Å / Num. obs: 272211 / % possible obs: 29.6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Diffraction reflection shell |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Resolution: 3.8→50 Å / Num. obs: 272211 / % possible obs: 29.6 % / Observed criterion σ(I): -0.5 / Redundancy: 1.3 % / Rmerge(I) obs: 0.158 / Χ2: 0.906 / Net I/σ(I): 3.6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell | Resolution: 3.8→3.94 Å / Redundancy: 1.2 % / Rmerge(I) obs: 0.249 / Mean I/σ(I) obs: 1.9 / Num. unique all: 25858 / Χ2: 0.755 / % possible all: 28.2 |
-Phasing
Phasing | Method: molecular replacement |
---|
-Processing
Software |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: PDB entry 1ohf Resolution: 3.8→49.42 Å / Data cutoff high absF: 54374.6 / Data cutoff high rms absF: 54374.6 / Data cutoff low absF: 0 / Cross valid method: not used / σ(F): 0 / Stereochemistry target values: Engh & Huber Details: Subunit A in the publication is represented by chains A and B; subunit B is represented by chains C and D; subunit C is represented by chains E and F; and subunit D is represented by chains ...Details: Subunit A in the publication is represented by chains A and B; subunit B is represented by chains C and D; subunit C is represented by chains E and F; and subunit D is represented by chains G and H. Cross-validation not used due to 30-fold non-crystallographic symmetry.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | Solvent model: flat / Bsol: 0.52 Å2 / ksol: 0.3 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 20.945 Å2
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine analyze | Luzzati coordinate error obs: 0.53 Å / Luzzati d res low obs: 5 Å / Luzzati sigma a obs: 0.55 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 3.8→49.42 Å
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
LS refinement shell |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Xplor file |
|