3TL6
Crystal structure of purine nucleoside phosphorylase from Entamoeba histolytica
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3OCC | PDB ENTRY 3OCC |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 5.5 | 289 | EnhiA.01033.a.MB1 PW30575 at 24.4 mg/mL against JCSG+ screen condition H7: 0.2 M ammonium sulfate, 0.1 M Bis-Tris, pH 5.5, 25% PEG3350, with 20% ethylene glycol as cryoprotectant, crystal tracking ID 218267h7, VAPOR DIFFUSION, SITTING DROP, temperature 289K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.41 | 48.93 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 97.97 | α = 90 |
b = 86.56 | β = 117.88 |
c = 102.56 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 | ADSC QUANTUM 315r | 2011-04-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALS BEAMLINE 5.0.3 | 0.9765 | ALS | 5.0.3 |
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 | 2.65 | 50 | 98.7 | 0.067 | 14.52 | 3.9 | 44364 | 43802 | -3 | 54.736 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 2.65 | 2.72 | 99.2 | 0.506 | 2.9 |
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 3OCC | 2.65 | 50 | 43801 | 2200 | 98.98 | 0.2149 | 0.2127 | 0.2572 | RANDOM | 58.8445 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
6.26 | 2.81 | -4.45 | 0.81 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.36 |
r_dihedral_angle_3_deg | 17.046 |
r_dihedral_angle_4_deg | 14.738 |
r_dihedral_angle_1_deg | 5.752 |
r_angle_refined_deg | 1.225 |
r_chiral_restr | 0.078 |
r_bond_refined_d | 0.008 |
r_gen_planes_refined | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9889 |
Nucleic Acid Atoms | |
Solvent Atoms | 86 |
Heterogen Atoms | 35 |
Software
Software | |
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Software Name | Purpose |
XSCALE | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
ADSC | data collection |
XDS | data reduction |