1C1P
RECRUITING ZINC TO MEDIATE POTENT, SPECIFIC INHIBITION OF SERINE PROTEASES
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 5.9 | TRYPSIN-BENZAMIDINE, P3(1) 2 1 WERE GROWN BY VAPOR DIFFUSION, AS DESCRIBED FOR P2(1) 2(1) 2(1) (LARGE CELL) (MANGEL, ET AL., BIOCHEMISTRY 29, 8351-8357, 1990) THE CRYSTAL WAS SOAKED IN A SOLUTION OF 0.10 M MES, 2.02 M MGSO4 . 7 H2O, PH 5.90, 2.0 % DMSO, SATURATED IN HEMI-BABIM OVER A PERIOD OF SEVERAL DAYS WITH SEVERAL REPLACEMENTS OF THE SOAKING SOLUTION. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.04 | 18 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 54.86 | α = 90 |
b = 54.86 | β = 90 |
c = 109.79 | γ = 120 |
Symmetry | |
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Space Group | P 31 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 | IMAGE PLATE | RIGAKU RAXIS IV++ | MSC MIRRORS | 1998-11-26 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE |
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 | 1.33 | 35.94 | 86 | 0.064 | 13.5 | 3.4 | 35904 | 0.9 |
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) | |||||||||||
1.37 | 1.43 | 41.4 | 0.252 | 2.1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | DIFFERENCE FOURIER PLUS REFINEMENT | X-PLOR | 1.37 | 7.5 | 1.8 | 35068 | 3486 | 86 | 0.178 | 0.178 | 0.192 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 26.4 |
x_angle_deg | 3.8 |
x_improper_angle_d | 0.59 |
x_bond_d | 0.02 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3319 |
Nucleic Acid Atoms | |
Solvent Atoms | 714 |
Heterogen Atoms | 59 |
Software
Software | |
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Software Name | Purpose |
bioteX | data collection |
bioteX | data reduction |
X-PLOR | model building |
Quanta | model building |
Insight II | model building |
X-PLOR | refinement |
bioteX | data scaling |
X-PLOR | phasing |