2UX7
Pseudoazurin with engineered amicyanin ligand loop, reduced form, pH 7.5
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | HANGING DROP VAPOR DIFFUSION METHOD, 1 MICRO-L OF PROTEIN (20MG/ML IN 50 MM TRIS/HCL PLUS 30 MM NACL) WERE MIXED WITH 1 MICRO-L RESORVOIR SOLUTION (10 MM TRIS/HCL PLUS 2 M AMMONIUM SULFATE AND 2 M NACL). THE CRYSTALS WERE REDUCED BY ADDING 50 MM MERCAPTOETHANOL TO THE RESERVOIR SOLUTION AND BECAME COLORLESS AFTER 3 HOURS., pH 7.5 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.12 | 41.61 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 105.756 | α = 90 |
b = 105.756 | β = 90 |
c = 57.28 | γ = 120 |
Symmetry | |
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Space Group | H 3 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | MARRESEARCH | MIRRORS | 2006-10-25 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | MPG/DESY, HAMBURG BEAMLINE BW6 | MPG/DESY, HAMBURG | BW6 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 1.3 | 50 | 97.6 | 0.094 | 15.7 | 15.2 | 29429 | 2 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.3 | 1.35 | 94 | 0.39 | 3.6 | 11.7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1BQK | 1.3 | 30 | 27910 | 1503 | 97.6 | 0.192 | 0.192 | 0.201 | RANDOM | 19.47 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-0.66 | -0.33 | -0.66 | 0.99 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.117 |
r_dihedral_angle_3_deg | 13.19 |
r_dihedral_angle_1_deg | 6.096 |
r_dihedral_angle_4_deg | 5.912 |
r_scangle_it | 2.793 |
r_scbond_it | 1.798 |
r_angle_refined_deg | 1.184 |
r_mcangle_it | 1.126 |
r_mcbond_it | 0.756 |
r_symmetry_hbond_refined | 0.384 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 903 |
Nucleic Acid Atoms | |
Solvent Atoms | 118 |
Heterogen Atoms | 8 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
SCALEPACK | data scaling |
MOLREP | phasing |