226L
GENERATING LIGAND BINDING SITES IN T4 LYSOZYME USING DEFICIENCY-CREATING SUBSTITUTIONS
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 277 | CRYSTALS GROWN IN HANGING DROPS AT 4 DEGREES C. PROTEIN 10-20 MG/ML IN A BUFFER CONTAINING 0.1M NA2PO4 PH 6.6, 0.55 M NACL WAS DILUTED 1/2 WITH A WELL SOLUTION CONTAINING 1.8-2.2M NA/KPO4 PH 6.3-7.1 WITH OXIDIZED/REDUCED BME., pH 7.0, vapor diffusion - hanging drop, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.79 | 55.9 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 61.2 | ¦Á = 90 |
b = 61.2 | ¦Â = 90 |
c = 96 | ¦Ã = 120 |
Symmetry | |
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Space Group | P 32 2 1 |
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 | 298 | FILM | FILM | GRAPHITE MONOCHROMATOR | 1990-05-20 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RUH2R |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.8 | 10 | 56 | 0.085 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1.8 | 3 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | DIFFERENCE FOURIER | WILD TYPE T4 LYSOZYME | 1.8 | 10 | 11547 | 11547 | 56 | 0.175 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_angle_deg | 2.47 |
t_nbd | 0.052 |
t_bond_d | 0.017 |
t_gen_planes | 0.016 |
t_trig_c_planes | 0.012 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1288 |
Nucleic Acid Atoms | |
Solvent Atoms | 145 |
Heterogen Atoms | 2 |
Software
Software | |
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Software Name | Purpose |
TNT | refinement |
PURDUE | data reduction |
Agrovata | data scaling |
ROTAVATA | data scaling |
TNT | phasing |