7JWN
Crystal structure of Human Serum Albumin in complex with ketoprofen
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4K2C |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | 310 | Prior to crystallization, the protein at concentration of 162 mg/ml (dissolved in 50 mM Tris pH 7.4 and 20 mM NaCl) was mixed with 100 mM ketoprofen in 100% DMSO in ratio 9:1 (final ketoprofen concentration 10 mM) and incubated for several hours at 37 oC. Then, 0.2 ul of the protein solution was mixed with 0.2 ul of the well condition (24% PEG 3350, 50 mM K2HPO4 at pH 7.0). The crystallization plate was incubated at RT for 3 months, then for several days at 37 oC, and after the growth of the first HSA crystals, the plate was transferred to RT. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.38 | 48.28 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 170.499 | α = 90 |
b = 38.878 | β = 104.47 |
c = 98.501 | γ = 90 |
Symmetry | |
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Space Group | C 1 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 | 100 | PIXEL | DECTRIS PILATUS3 6M | 2020-02-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.979 | APS | 19-ID |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.6 | 50 | 96.4 | 0.08 | 0.092 | 0.044 | 9.3 | 4.2 | 18925 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.6 | 2.64 | 88.5 | 0.803 | 0.925 | 0.447 | 0.612 | 1.3 | 3.5 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | MOLECULAR REPLACEMENT | THROUGHOUT | 4K2C | 2.6 | 41.92 | 15048 | 772 | 80.25 | 0.1855 | 0.1831 | 0.2307 | RANDOM | 51.809 |
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] | |
0.64 | -0.22 | -0.81 | 0.25 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 27.975 |
r_dihedral_angle_3_deg | 14.491 |
r_dihedral_angle_4_deg | 14.246 |
r_dihedral_angle_1_deg | 5.092 |
r_angle_refined_deg | 1.139 |
r_angle_other_deg | 1.111 |
r_chiral_restr | 0.044 |
r_bond_refined_d | 0.002 |
r_bond_other_d | 0.002 |
r_gen_planes_refined | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4639 |
Nucleic Acid Atoms | |
Solvent Atoms | 192 |
Heterogen Atoms | 132 |
Software
Software | |
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Software Name | Purpose |
HKL-3000 | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
HKL-3000 | data reduction |
MOLREP | phasing |
Coot | model building |