1AXA
ACTIVE-SITE MOBILITY IN HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 PROTEASE AS DEMONSTRATED BY CRYSTAL STRUCTURE OF A28S MUTANT
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 6.8 | pH 6.8 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.2 | 44 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 63.554 | α = 90 |
b = 63.554 | β = 90 |
c = 83.66 | γ = 120 |
Symmetry | |
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Space Group | P 61 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 293 | AREA DETECTOR | SIEMENS | 1996-05-30 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 |
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 | 34 | 93 | 0.064 | 15 | 4.9 | 11025 | 2 |
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) | |||||||||||
2 | 2.2 | 76 | 0.25 | 3 | 2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | 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 | 2 | 20 | 11025 | 11025 | 92.6 | 0.194 |
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_dihedral_angle_d | 28.5 |
t_angle_deg | 3.2 |
t_it | 2.2 |
t_nbd | 0.08 |
t_bond_d | 0.019 |
t_gen_planes | 0.016 |
t_trig_c_planes | 0.015 |
t_incorr_chiral_ct | |
t_pseud_angle |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1524 |
Nucleic Acid Atoms | |
Solvent Atoms | 63 |
Heterogen Atoms | 84 |
Software
Software | |
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Software Name | Purpose |
TNT | refinement |
SAINT | data reduction |
SAINT | data scaling |
TNT | phasing |