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- PDB-1znv: How a His-metal finger endonuclease ColE7 binds and cleaves DNA w... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1znv | ||||||
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Title | How a His-metal finger endonuclease ColE7 binds and cleaves DNA with a transition metal ion cofactor | ||||||
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![]() | Hydrolase/PROTEIN BINDING / H-N-H motif / Ni-binding / protein-protein complex / endonuclease / Hydrolase-PROTEIN BINDING COMPLEX | ||||||
Function / homology | ![]() extrachromosomal circular DNA / bacteriocin immunity / toxic substance binding / endonuclease activity / killing of cells of another organism / Hydrolases; Acting on ester bonds / defense response to bacterium / metal ion binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() | ||||||
![]() | Doudeva, L.G. / Huang, H. / Hsia, K.C. / Shi, Z. / Li, C.L. / Shen, Y. / Yuan, H.S. | ||||||
![]() | ![]() Title: Crystal structural analysis and metal-dependent stability and activity studies of the ColE7 endonuclease domain in complex with DNA/Zn2+ or inhibitor/Ni2+ Authors: Doudeva, L.G. / Huang, H. / Hsia, K.C. / Shi, Z. / Li, C.L. / Shen, Y. / Cheng, Y.S. / Yuan, H.S. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 107 KB | Display | ![]() |
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PDB format | ![]() | 81 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 470.1 KB | Display | ![]() |
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Full document | ![]() | 477.1 KB | Display | |
Data in XML | ![]() | 22.8 KB | Display | |
Data in CIF | ![]() | 32.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1znsC ![]() 1mz8S S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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2 | ![]()
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Unit cell |
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Components
#1: Protein | Mass: 10735.845 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Species: Escherichia coli / Strain: W3110 / Gene: cei7 / Plasmid: pQE70 / Production host: ![]() ![]() #2: Protein | Mass: 15400.457 Da / Num. of mol.: 2 / Fragment: Nuclease domain / Mutation: H545E Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Species: Escherichia coli / Strain: W3110 / Gene: cei7 / Plasmid: pQE70 / Production host: ![]() ![]() References: UniProt: Q47112, Hydrolases; Acting on ester bonds #3: Chemical | #4: Chemical | #5: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.8 Å3/Da / Density % sol: 56.02 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 5.7 Details: 0.3M phosphate buffer, 50mM NaCl, 20% PEG550 MME, 10% glycerol, pH 5.7, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
-Data collection
Diffraction | Mean temperature: 120 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Dec 15, 2004 |
Radiation | Monochromator: double crystal monochromator (DCM) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 2→40 Å / Num. all: 224307 / Num. obs: 223845 / % possible obs: 99.8 % / Redundancy: 5.8 % / Biso Wilson estimate: 16.3 Å2 / Rsym value: 0.082 / Net I/σ(I): 25.34 |
Reflection shell | Resolution: 2→2.07 Å / Mean I/σ(I) obs: 5.73 / Num. unique all: 4763 / Rsym value: 0.381 |
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Processing
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Refinement | Method to determine structure: Isomorphous to 1MZ8 Starting model: PDB ENTRY 1MZ8 Resolution: 2→27.65 Å / Rfactor Rfree error: 0.004 / Data cutoff high absF: 412157.16 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 58.7927 Å2 / ksol: 0.374744 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 32.8 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2→27.65 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2→2.09 Å / Rfactor Rfree error: 0.012 / Total num. of bins used: 6
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Xplor file |
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