2RFM
Structure of a Thermophilic Ankyrin Repeat Protein
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.4 | 286 | 20% Glycerol, 2M Ammoniumsulfate, 1% 1,3-butanediole, 20mM HEPES, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 286K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.97 | 58.59 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 101.002 | α = 90 |
b = 101.002 | β = 90 |
c = 174.483 | γ = 120 |
Symmetry | |
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Space Group | P 64 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 | 180 | CCD | MARMOSAIC 225 mm CCD | 2006-07-12 | M | SINGLE WAVELENGTH | ||||||
2 | 1 | x-ray | 180 | IMAGE PLATE | RIGAKU | 2006-02-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | BESSY BEAMLINE 14.2 | 0.9238 | BESSY | 14.2 |
2 | ROTATING ANODE | RIGAKU | 1.5418 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | 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 | 1.65 | 48.472 | 93 | 0.055 | 0.055 | 7.2 | 9.9 | 58965 | 3 | 3 | 19.96 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1,2 | 1.65 | 1.74 | 66.9 | 0.323 | 0.353 | 2.4 | 6.2 | 6052 |
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-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | SAD | THROUGHOUT | 1.65 | 20 | 58909 | 3022 | 92.76 | 0.15695 | 0.157 | 0.156 | 0.178 | RANDOM | 45.827 |
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] | |
-0.24 | -0.12 | -0.24 | 0.35 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.345 |
r_dihedral_angle_4_deg | 17.591 |
r_dihedral_angle_3_deg | 12.034 |
r_dihedral_angle_1_deg | 4.592 |
r_scangle_it | 2.342 |
r_mcangle_it | 1.754 |
r_scbond_it | 1.605 |
r_angle_refined_deg | 1.373 |
r_mcbond_it | 1.17 |
r_nbtor_refined | 0.322 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2909 |
Nucleic Acid Atoms | |
Solvent Atoms | 479 |
Heterogen Atoms | 111 |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
SHELX | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
CrystalClear | data collection |
MOSFLM | data reduction |
SHELXD | phasing |