7A0X
Structure of dimeric sodium proton antiporter NhaA, at pH 6.0, crystallized with chimeric Fab antibodies
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 7A0W |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.2 | 292 | 100 mM Tris-HCl pH 8.2, 50 mM BaCl2, 50 mM CaCl2, 33 % PEG400, soaked at pH 6.0 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.1 | 66.77 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 113.01 | α = 90 |
b = 91.713 | β = 109.798 |
c = 139.997 | 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 | PIXEL | DECTRIS PILATUS 6M-F | 2017-10-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1) | 0.976 | PETRA III, EMBL c/o DESY | P13 (MX1) |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 2.37 | 24.9 | 94.4 | 0.16 | 0.999 | 17.8 | 20.4 | 69454 | 62.04 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 2.37 | 2.68 | 64.3 | 2.75 | 0.509 | 1.7 | 18.6 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 7A0W | 2.37 | 24.9 | 1.35 | 69423 | 2219 | 63.14 | 0.206 | 0.2048 | 0.2412 | 77.87 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 10.3291 |
f_angle_d | 0.5071 |
f_chiral_restr | 0.0402 |
f_plane_restr | 0.0036 |
f_bond_d | 0.0018 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 11849 |
Nucleic Acid Atoms | |
Solvent Atoms | 177 |
Heterogen Atoms | 222 |
Software
Software | |
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Software Name | Purpose |
MxCuBE | data collection |
PHENIX | refinement |
STARANISO | data scaling |
XDS | data reduction |
PHASER | phasing |
Coot | model building |