7JN9
Crystal structure of the substrate-binding domain of E. coli DnaK in complex with the peptide QEHTGSQLRIAAYGP
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 | 2.4 M (NH4)2SO4, 0.1 M K3PO4 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.05 | 39.92 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 37.269 | α = 90 |
b = 95.61 | β = 90 |
c = 116.98 | 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 PILATUS3 R 200K-A | Rigaku VariMax HF | 2019-08-05 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.5418 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.4 | 50 | 99.4 | 0.152 | 0.167 | 0.09 | 5.2 | 4.2 | 8444 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 2.4 | 2.44 | 97.8 | 0.714 | 0.615 | 3.8 |
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 | 2.4 | 30.77 | 8036 | 404 | 99.03 | 0.2271 | 0.2238 | 0.2864 | RANDOM | 32.888 |
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] | |
1.77 | 0.58 | -2.35 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.056 |
r_dihedral_angle_4_deg | 22.89 |
r_dihedral_angle_3_deg | 17.515 |
r_dihedral_angle_1_deg | 7.307 |
r_angle_refined_deg | 1.446 |
r_angle_other_deg | 1.229 |
r_chiral_restr | 0.052 |
r_bond_refined_d | 0.006 |
r_gen_planes_refined | 0.005 |
r_bond_other_d | 0.001 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1643 |
Nucleic Acid Atoms | |
Solvent Atoms | 21 |
Heterogen Atoms | 10 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
PHASER | phasing |