1JOE
Crystal Structure of Autoinducer-2 Production Protein (LuxS) from Heamophilus influenzae
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | 295 | Method: vapor diffusion-Hanging drop. Well Solution: PEG 4000 25%, MAGNESIUM CHLORIDE 0.2M, TRIS BUFFER 0.1M pH8.5. Drop composition: 15ul OF WELL SOLUTION, 15 ul OF PROTEIN (15mg/ml). Soaking medium: PEG 4000 (27.5%), magnesium chloride 0.2M, Tris buffer 0.1M pH 8.5, Mercury Acetate 0.5mM. Soaking time: 3.5 hrs. Cryo Protectant: Lithium Formate 15%. , VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.25 | 45.3 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 115.53 | α = 90 |
b = 115.53 | β = 90 |
c = 51.23 | γ = 90 |
Symmetry | |
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Space Group | P 42 |
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 | MARRESEARCH | mirror | 2000-07-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 17-ID | 1.00 | APS | 17-ID |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.3 | 40 | 100 | 0.0891 | 15.09 | 3.67 | 30314 | 30314 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.3 | 2.44 | 100 | 0.499 | 1.68 | 3.7 |
Refinement
Statistics | |||||||||||||||||||
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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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
X-RAY DIFFRACTION | SAD(HG) | free R throughout. | 2.4 | 10 | 26405 | 26405 | 1335 | 100 | 0.2099 | 0.2099 | 0.2053 | 0.2 | 0.2992 | 0.26 | random |
Coordinate Error | ||
---|---|---|
Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
4722.5 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
s_anti_bump_dis_restr | 0.101 |
s_similar_adp_cmpnt | 0.095 |
s_non_zero_chiral_vol | 0.022 |
s_from_restr_planes | 0.021 |
s_zero_chiral_vol | 0.019 |
s_angle_d | 0.017 |
s_bond_d | 0.004 |
s_similar_dist | |
s_rigid_bond_adp_cmpnt | |
s_approx_iso_adps |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4580 |
Nucleic Acid Atoms | |
Solvent Atoms | 134 |
Heterogen Atoms | 8 |
Software
Software | |
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Software Name | Purpose |
SHELXS | phasing |
MLPHARE | phasing |
DM | model building |
SHELXL-97 | refinement |
X-GEN | data reduction |
X-GEN | data scaling |
DM | phasing |