4HIF
Ultrahigh-resolution crystal structure of Z-DNA in complex with Zn2+ ions
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1I0T |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 6 | 292 | A 1.5 MM DNA WATER SOLUTION MIXED 1:1 V/V WITH 10% MPD, 12 MM SPERMINE TETRA-HCL,12 MM NACL, 80 MM KCL AND EQUILIBRATED AGAINST 35% MPD, PH 6. VAPOR DIFFUSION, HANGING DROP METHOD, TEMPERATURE 292K. FOR ZN2+ SOAKING A CRYSTAL WAS PLACED IN 0.002 ML OF THE RESERVOIR SOLUTION MIXED WITH 0.002 ML OF 5 MM ZNCL2 FOR ONE WEEK. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.53 | 19.8 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 17.791 | α = 90 |
b = 30.907 | β = 90 |
c = 44.196 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | IMAGE PLATE | MAR555 FLAT PANEL | 2010-12-02 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X11 | EMBL/DESY, HAMBURG | X11 |
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 | 0.849 | 17.976 | 87.9 | 0.036 | 20.02 | 3.02 | 36512 | -3 | 8.109 |
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 | 0.85 | 0.9 | 63.8 | 0.222 | 3.11 | 1.77 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R | 1I0T | 0.85 | 17.976 | 36512 | 1004 | 87.9 | 0.092 | 0.092 | 0.113 | RANDOM |
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] | |
Coordinate Error | ||
---|---|---|
Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
6 | 144.6 | 313.39 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
s_anti_bump_dis_restr | 0.123 |
s_approx_iso_adps | 0.076 |
s_angle_d | 0.059 |
s_similar_adp_cmpnt | 0.033 |
s_bond_d | 0.027 |
s_rigid_bond_adp_cmpnt | 0.025 |
s_similar_dist | |
s_from_restr_planes | |
s_zero_chiral_vol | |
s_non_zero_chiral_vol |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 240 |
Solvent Atoms | 75 |
Heterogen Atoms | 17 |
Software
Software | |
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Software Name | Purpose |
MAR345dtb | data collection |
PHASER | phasing |
SHELXL-97 | refinement |
XDS | data reduction |
XDS | data scaling |