2Q34
Crystal Structure of the ECH2 decarboxylase domain of CurF from Lyngbya majuscula, rhombohedral crystal form
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.15 | 277.15 | 1.5M sodium malonate pH 7.0, 50 mM HEPES pH 6.8, 20 mM Tris pH 7.9, 500 mM NaCl, 10% glycerol, pH 7.15, VAPOR DIFFUSION, HANGING DROP, temperature 277.15K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.37 | 48.19 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 106.241 | α = 90 |
b = 106.241 | β = 90 |
c = 118.496 | γ = 120 |
Symmetry | |
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Space Group | H 3 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 | CCD | MARMOSAIC 300 mm CCD | K-B pair of biomorph mirrors for vertical and horizontal focusing | 2006-12-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 23-ID-B | 1.0332 | APS | 23-ID-B |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 1.85 | 50 | 100 | 0.072 | 15.5 | 11 | 22275 | 22275 | 1 | 1 | 25.6 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.85 | 1.92 | 100 | 0.568 | 4.3 | 10.3 | 2199 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | PDB ENTRY 2Q2X | 1.85 | 36.34 | 22275 | 22268 | 1140 | 99.41 | 0.171 | 0.169 | 0.206 | RANDOM | 22.787 |
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] | |
-1.02 | -0.51 | -1.02 | 1.53 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.12 |
r_dihedral_angle_4_deg | 19.1 |
r_dihedral_angle_3_deg | 14.428 |
r_scangle_it | 6.912 |
r_dihedral_angle_1_deg | 5.019 |
r_scbond_it | 4.599 |
r_mcangle_it | 2.013 |
r_angle_refined_deg | 1.249 |
r_mcbond_it | 1.22 |
r_nbtor_refined | 0.309 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1895 |
Nucleic Acid Atoms | |
Solvent Atoms | 184 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
Blu-Ice | data collection |
HKL-2000 | data reduction |