+Open data
-Basic information
Entry | Database: PDB / ID: 4qqx | ||||||
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Title | Crystal structure of T. fusca Cas3-ATP | ||||||
Components |
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Keywords | Hydrolase/dna / CRISPR / Cas3 / hydrolase / helicase / hydrolase-DNA complex / helicase-DNA complex | ||||||
Function / homology | Function and homology information defense response to virus / hydrolase activity / ATP binding / metal ion binding Similarity search - Function | ||||||
Biological species | Thermobifida fusca (bacteria) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.34 Å | ||||||
Authors | Ke, A. / Huo, Y. / Nam, K.H. | ||||||
Citation | Journal: Nat.Struct.Mol.Biol. / Year: 2014 Title: Structures of CRISPR Cas3 offer mechanistic insights into Cascade-activated DNA unwinding and degradation. Authors: Huo, Y. / Nam, K.H. / Ding, F. / Lee, H. / Wu, L. / Xiao, Y. / Farchione, M.D. / Zhou, S. / Rajashankar, K. / Kurinov, I. / Zhang, R. / Ke, A. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 4qqx.cif.gz | 727.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb4qqx.ent.gz | 584 KB | Display | PDB format |
PDBx/mmJSON format | 4qqx.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 4qqx_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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Full document | 4qqx_full_validation.pdf.gz | 1.6 MB | Display | |
Data in XML | 4qqx_validation.xml.gz | 131.7 KB | Display | |
Data in CIF | 4qqx_validation.cif.gz | 175.5 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/qq/4qqx ftp://data.pdbj.org/pub/pdb/validation_reports/qq/4qqx | HTTPS FTP |
-Related structure data
Related structure data | 4qqwSC 4qqyC 4qqzC S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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Unit cell |
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-Components
#1: Protein | Mass: 106210.609 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Thermobifida fusca (bacteria) / Strain: YX / Gene: Tfu_1593 / Plasmid: pET28b / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)star / References: UniProt: Q47PJ0 #2: DNA chain | Mass: 3713.524 Da / Num. of mol.: 4 / Source method: obtained synthetically #3: Chemical | ChemComp-FE / #4: Chemical | ChemComp-ATP / |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.68 Å3/Da / Density % sol: 54.14 % |
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Crystal grow | Temperature: 294 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: 100 mM MES, pH 6.5, and 5% 10% (w/v) PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 294.0K |
-Data collection
Diffraction |
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Diffraction source |
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Detector |
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Radiation | Monochromator: Si 111 CHANNEL / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||
Radiation wavelength | Relative weight: 1 | ||||||||||||
Reflection | Resolution: 3.34→50 Å / Num. all: 66466 / Num. obs: 66466 / % possible obs: 99.21 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 2 / Redundancy: 2.2 % / Biso Wilson estimate: 92.53 Å2 / Rmerge(I) obs: 0.064 / Net I/σ(I): 9.3 | ||||||||||||
Reflection shell | Resolution: 3.34→3.49 Å / Redundancy: 2.2 % / Rmerge(I) obs: 0.412 / Mean I/σ(I) obs: 2.6 / % possible all: 99.6 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: 4QQW Resolution: 3.34→46.98 Å / FOM work R set: 0.8403 / SU ML: 0.37 / σ(F): 1.34 / Phase error: 23.53 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 252.05 Å2 / Biso mean: 108.47 Å2 / Biso min: 20 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 3.34→46.98 Å
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Refine LS restraints |
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 12
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