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- PDB-6pc1: Crystal structure of Helicobacter pylori PPX/GppA (E143A) in comp... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6pc1 | ||||||
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Title | Crystal structure of Helicobacter pylori PPX/GppA (E143A) in complex with ppGpp | ||||||
![]() | Guanosine pentaphosphate phosphohydrolase | ||||||
![]() | HYDROLASE / pppGpp / ppGpp / PPX / GppA / Polyphosphate | ||||||
Function / homology | ![]() guanosine-5'-triphosphate,3'-diphosphate diphosphatase activity / nucleobase-containing small molecule interconversion / regulation of transcription by RNA polymerase II / metal ion binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Song, H. / Wang, C. / Shaw, G.X. / Ji, X. | ||||||
![]() | ![]() Title: Structure and activity of PPX/GppA homologs from Escherichia coli and Helicobacter pylori. Authors: Song, H. / Dharmasena, M.N. / Wang, C. / Shaw, G.X. / Cherry, S. / Tropea, J.E. / Jin, D.J. / Ji, X. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 394.5 KB | Display | ![]() |
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PDB format | ![]() | 318.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 585.4 KB | Display | ![]() |
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Full document | ![]() | 593.6 KB | Display | |
Data in XML | ![]() | 3.4 KB | Display | |
Data in CIF | ![]() | 24 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6pbzC ![]() 6pc0C ![]() 6pc2C ![]() 6pc3C ![]() 3hi0S 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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1 | ![]()
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2 | ![]()
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Unit cell |
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Components
-Protein , 1 types, 4 molecules ABCD
#1: Protein | Mass: 55597.512 Da / Num. of mol.: 4 / Mutation: E143A Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Strain: G27 / Gene: HPG27_257 / Production host: ![]() ![]() |
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-Non-polymers , 6 types, 388 molecules ![](data/chem/img/G4P.gif)
![](data/chem/img/PO4.gif)
![](data/chem/img/LMR.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/PO4.gif)
![](data/chem/img/LMR.gif)
![](data/chem/img/EDO.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/HOH.gif)
#2: Chemical | ChemComp-G4P / #3: Chemical | ChemComp-PO4 / #4: Chemical | ChemComp-LMR / ( #5: Chemical | #6: Chemical | #7: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.91 Å3/Da / Density % sol: 57.69 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop Details: 20% (v/v) PEG3350, 0.2 M Ammonium tartrate, 15 mM Malic acid |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: RAYONIX MX-300 / Detector: CCD / Date: Jun 6, 2014 |
Radiation | Monochromator: Mirror1 / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 2.76→40 Å / Num. obs: 63095 / % possible obs: 99.3 % / Redundancy: 4.2 % / Rpim(I) all: 0.085 / Net I/σ(I): 7.4 |
Reflection shell | Resolution: 2.7→2.8 Å / Redundancy: 1.9 % / Mean I/σ(I) obs: 0.7 / Num. unique obs: 5219 / % possible all: 74.6 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 3hi0 Resolution: 2.76→40 Å / SU ML: 0.37 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 24.71
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.76→40 Å
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Refine LS restraints |
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LS refinement shell |
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