2P3U
Crystal structure of human factor XA complexed with 3-chloro-N-(4-chloro-2-{[(5-chloropyridin-2-yl)amino]carbonyl}-6-methoxyphenyl)-4-[(1-methyl-1H-imidazol-2-yl)methyl]thiophene-2-carboxamide {Pfizer 320663}
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1FJS | PDB Entry 1FJS |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | EVAPORATION | 7.5 | 295 | A THREE-FOLD EXCESS OF 3-Chloro-4-(2-methylamino-imidazol-1-ylmethyl)-thiophene-2-carboxylic acid [4-chloro-2-(5-chloro-pyridin-2-ylcarbamoyl)-6-methoxy-phenyl]-amide WAS ADDED TO THE DES-GLA-FACTOR XA. THE PROTEIN WAS THEN CONCENTRATED TO 12-17 MG/ML. CRYSTALS WERE GROWN USING 2 UL OF COMPLEX WITH 2 UL OF RESERVOIR CONTAINING 15-21% PEG1500 AND 10 MM CACL2. 30-40 UL SITTING DROPS CONTAINING SATURATED INHIBITOR (5 MM) IN 21% PEG1500, 5 MM CACL2, 20 MM NACL, 25 MM TRIS PH 7.5 (CRYSTAL SOAKING SOLUTION) WERE EQUILIBRATED OVER A 1 ML RESERVOIR CONTAINING THE CRYSTAL SOAKING SOLUTION FOR 1 TO 2 DAYS. A SINGLE FACTOR XA CRYSTAL WAS TRANSFERRED USING A MOUNTED CRYOLOOP INTO ONE OF THESE SITTING DROPS AND ALLOWED TO SOAK FOR THREE OR MORE DAYS, EVAPORATION, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.44 | 51.2 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 56.014 | α = 90 |
b = 71.717 | β = 90 |
c = 78.651 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | IMAGE PLATE | MAR scanner 345 mm plate | 2000-03-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL7-1 | SSRL | BL7-1 |
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 | 1.62 | 20 | 98.9 | 0.04 | 18.4 | 3.7 | 40439 | 21.9 |
Highest Resolution Shell | |||||||||||||||||||
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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) | |||||||||||
1.62 | 1.66 | 97.9 | 0.392 | 3.2 | 3.7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | OTHER | THROUGHOUT | PDB Entry 1FJS | 1.62 | 19.8 | 2 | 40430 | 39893 | 1569 | 97.2 | 0.192 | 0.191 | 0.21 | RANDOM | 26.3 |
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] | |
1.74 | -5.12 | 3.37 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 21.9 |
c_scangle_it | 3.69 |
c_mcangle_it | 2.53 |
c_scbond_it | 2.46 |
c_mcbond_it | 1.65 |
c_angle_deg | 0.9 |
c_improper_angle_d | 0.59 |
c_bond_d | 0.004 |
c_bond_d_na | |
c_bond_d_prot |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2220 |
Nucleic Acid Atoms | |
Solvent Atoms | 267 |
Heterogen Atoms | 37 |
Software
Software | |
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Software Name | Purpose |
CNX | refinement |
Blu-Ice | data collection |
MOSFLM | data reduction |
SCALA | data scaling |
X-PLOR | phasing |