Crystal Structure of Polyphosphate kinase 2-II (PPK2-II) from Bacillus cereus Apo-form
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3CZP |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 295 | PEG 2000 or 4000 , Tris buffer pH 8.5 and Li2SO4 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.92 | 57.93 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 93.134 | α = 90 |
b = 116.815 | β = 90 |
c = 130.54 | γ = 90 |
Symmetry | |
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Space Group | I 2 2 2 |
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 EIGER X 16M | Two-stage focusing X-ray optics | 2020-12-05 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X06SA | 1.0 | SLS | X06SA |
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 | 2.42 | 48.604 | 98.6 | 0.11 | 0.99 | 8.6 | 6.4 | 26950 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 2.42 | 2.52 | 1.07 | 0.53 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 2.55 | 48.604 | 23540 | 1177 | 99.733 | 0.213 | 0.21 | 0.217 | 0.273 | 0.2718 | RANDOM | 62.603 |
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] | |
0.008 | -0.035 | 0.027 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_3_deg | 16.311 |
r_dihedral_angle_6_deg | 15.048 |
r_lrange_other | 12.896 |
r_lrange_it | 12.893 |
r_scangle_it | 10.716 |
r_scangle_other | 10.66 |
r_dihedral_angle_2_deg | 9.141 |
r_mcangle_it | 8.62 |
r_mcangle_other | 8.619 |
r_scbond_it | 7.249 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4288 |
Nucleic Acid Atoms | |
Solvent Atoms | 58 |
Heterogen Atoms | 48 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
AutoProcess | data processing |
Coot | model building |
PHASER | phasing |