7N6M
Crystal structure of the substrate-binding domain of E. coli DnaK in complex with the peptide RQKPLLGLSR
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1DKZ |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 293 | 2.6 M (NH4)2SO4, 0.1 M K3PO4 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.11 | 41.75 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 37.71 | α = 90 |
b = 95.51 | β = 90 |
c = 117.22 | γ = 90 |
Symmetry | |
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Space Group | I 2 2 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | 2021-03-18 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL12-2 | 0.97946 | SSRL | BL12-2 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 1.82 | 74.04 | 96.3 | 0.154 | 0.163 | 0.05 | 0.998 | 8.4 | 10 | 18615 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.82 | 1.86 | 98.2 | 7.212 | 7.611 | 2.376 | 0.218 | 10.1 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1DKZ | 1.82 | 74.04 | 17631 | 978 | 95.74 | 0.2507 | 0.2486 | 0.2866 | RANDOM | 36.988 |
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] | |
2.58 | 0.59 | -3.17 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.509 |
r_dihedral_angle_3_deg | 15.664 |
r_dihedral_angle_4_deg | 10.807 |
r_dihedral_angle_1_deg | 6.47 |
r_angle_refined_deg | 1.445 |
r_angle_other_deg | 1.256 |
r_chiral_restr | 0.054 |
r_bond_refined_d | 0.007 |
r_gen_planes_refined | 0.006 |
r_bond_other_d | 0.001 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1625 |
Nucleic Acid Atoms | |
Solvent Atoms | 55 |
Heterogen Atoms | 5 |
Software
Software | |
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Software Name | Purpose |
MOSFLM | data reduction |
Aimless | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |