1INL
Crystal Structure of Spermidine Synthase from Thermotoga Maritima
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 4.6 | 300 | PEG 4000, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 300K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.47 | 50.26 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 132.436 | α = 90 |
b = 197.812 | β = 90 |
c = 51.627 | γ = 90 |
Symmetry | |
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Space Group | P 21 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 | CCD | SBC-2 | Double crystal monochromator Si-111 | 2001-03-28 | M | MAD | |||||
2 | 1 | x-ray | 100 | CCD | SBC-2 | Double crystal monochromator Si-111 | 2001-03-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.97925, 0.97938, 0.99187 | APS | 19-ID |
2 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.97941 | APS | 19-ID |
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 | ||||||||
1,2 | 1.5 | 50 | 95.1 | 0.087 | 23 | 4 | 217343 | 207448 | -3 | 16 |
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) | |||||||||||
1.5 | 1.55 | 81.4 | 0.24 | 4 | 2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | MAD | THROUGHOUT | 1.5 | 48.1 | 207247 | 207247 | 10174 | 95.2 | 0.199 | 0.199 | 0.199 | 0.213 | RANDOM | 19 |
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] | |
-1.22 | -1.34 | 2.56 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 24.6 |
c_angle_deg | 1.2 |
c_improper_angle_d | 1.07 |
c_bond_d | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9367 |
Nucleic Acid Atoms | |
Solvent Atoms | 867 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
d*TREK | data scaling |
HKL-2000 | data reduction |
SnB | phasing |
SOLVE | phasing |
DM | model building |
CNS | refinement |
d*TREK | data reduction |
HKL-2000 | data scaling |
DM | phasing |