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- PDB-2hxa: Crystal structure of Cu(I) Azurin with the metal-binding loop seq... -
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Open data
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Basic information
Entry | Database: PDB / ID: 2hxa | ||||||
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Title | Crystal structure of Cu(I) Azurin with the metal-binding loop sequence "CTFPGHSALM" replaced with "CSPHQGAGM", at pH3.5 | ||||||
![]() | Azurin | ||||||
![]() | ELECTRON TRANSPORT / BLUE COPPER-BINDING PROTEIN / GREEK-KEY BETA-BARREL / LOOP MUTAGENESIS | ||||||
Function / homology | ![]() transition metal ion binding / periplasmic space / electron transfer activity / copper ion binding / zinc ion binding / identical protein binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() | ||||||
![]() | Banfield, M.J. | ||||||
![]() | ![]() Title: Engineering Copper Sites in Proteins: Loops Confer Native Structures and Properties to Chimeric Cupredoxins. Authors: Li, C. / Banfield, M.J. / Dennison, C. #1: ![]() Title: Basic requirements for a metal-binding site in a protein: The influence of loop shorteneing on the cupredoxin azurin Authors: Chan, L. / Yanagisawa, S. / Martins, B.M. / Messerschmidt, A. / Banfield, M.J. / Dennison, C. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 58.8 KB | Display | ![]() |
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PDB format | ![]() | 46.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related 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
#1: Protein | Mass: 13785.544 Da / Num. of mol.: 2 / Mutation: Metal binding loop Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Chemical | #3: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.23 Å3/Da / Density % sol: 44.81 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5 Details: 29-31% PEG 4000, 100mM magnesium chloride, 100mM Sodium acetate. Crystal soaked in ascorbate and pH3.5 buffer following growth, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
-Data collection
Diffraction | Mean temperature: 93 K |
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Diffraction source | Source: ![]() |
Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Mar 23, 2006 / Details: Qsmic "blue" |
Radiation | Monochromator: Ni filter / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.542 Å / Relative weight: 1 |
Reflection | Resolution: 2.2→35.56 Å / Num. obs: 12989 / % possible obs: 99.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 6.2 % / Biso Wilson estimate: 29.3 Å2 / Rmerge(I) obs: 0.081 / Rsym value: 0.081 / Net I/σ(I): 21 |
Reflection shell | Resolution: 2.2→2.32 Å / Redundancy: 5.8 % / Rmerge(I) obs: 0.343 / Mean I/σ(I) obs: 5.4 / Num. measured all: 15530 / Num. unique all: 1849 / Rsym value: 0.343 / % possible all: 99.9 |
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Processing
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Refinement | Method to determine structure: Direct use of Oxidised structure in same crystal form Resolution: 2.21→35.56 Å / Cor.coef. Fo:Fc: 0.932 / Cor.coef. Fo:Fc free: 0.882 / SU B: 5.823 / SU ML: 0.154 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.322 / ESU R Free: 0.246 / Stereochemistry target values: MAXIMUM LIKELIHOOD
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 19.472 Å2
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Refinement step | Cycle: LAST / Resolution: 2.21→35.56 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.206→2.264 Å / Total num. of bins used: 20
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