7PMQ
DEAD-box helicase DbpA in the active conformation bound to a hairpin loop RNA and ADP/BeF3
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 291 | 200 mM NH4/tartrate 100 mM Tris, pH 8.0 20% (w/v) PEG3350 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.58 | 52.39 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 159.644 | α = 90 |
b = 159.644 | β = 90 |
c = 204.682 | γ = 90 |
Symmetry | |
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Space Group | P 43 21 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 | 2019-05-03 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X06SA | 1.00 | SLS | X06SA |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim 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 | 3.22 | 49.42 | 99.7 | 0.245 | 0.255 | 0.999 | 10.7 | 13.6 | 43424 | 88.86 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 3.22 | 3.33 | 99.65 | 1.79 | 1.86 | 0.553 | 1.42 |
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 (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 | 2DB3 and 3MOJ | 3.22 | 49.42 | 1.34 | 43395 | 2172 | 99.76 | 0.2294 | 0.2276 | 0.23 | 0.2636 | 0.26 | Random | 86.14 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 15.538 |
f_angle_d | 0.587 |
f_chiral_restr | 0.0399 |
f_plane_restr | 0.0038 |
f_bond_d | 0.0026 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 13797 |
Nucleic Acid Atoms | 3568 |
Solvent Atoms | |
Heterogen Atoms | 128 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
PHENIX | phasing |
Coot | model building |
XDS | data reduction |
XSCALE | data scaling |