6R7S
Human Serum Albumin, complexed with Sulfasalazine
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 293 | HSA was dissolved in 50 mM potassium phosphate, 150 mM sodium chloride (pH 7.5) and concentrated to 2 mM (140 mg/mL). The HSA solution was incubated with a six fold excess of sulfasalazine at 4-5 degrees C for 4 hours.The crystal was grown by the hanging drop vapor diffusion method using a reservoir solution containing buffer (2.5 mM potassium phosphate, 7.5 mM sodium chloride, pH 7.0), 0.3% glycerol and polyethylene glycol 3350 (~30%). For crystallization 1 uL protein solution was equilibrated against 1 uL of reservoir solution. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.31 | 46.82 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 59.297 | ¦Á = 90 |
b = 85.113 | ¦Â = 99.89 |
c = 60.123 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 1 21 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 PILATUS 2M-F | 2018-07-20 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X06DA | 1.0000000 | SLS | X06DA |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 2.208 | 48.616 | 62.1 | 0.066 | 0.066 | 12.7 | 3.4 | 18420 | 48.12 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.208 | 2.473 | 10.8 | 0.729 | 0.729 | 0.85 | 0.453 | 1.6 | 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 | 4sly | 2.21 | 48.616 | 18420 | 866 | 62.1 | 0.182 | 0.177 | 0.275 | RANDOM | 53.55 |
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] | |
0.6903 | 0.1249 | 0.8605 | -1.5508 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_other_torsion | 21.42 |
t_omega_torsion | 2.53 |
t_angle_deg | 1.14 |
t_bond_d | 0.01 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_trig_c_planes | |
t_gen_planes | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4414 |
Nucleic Acid Atoms | |
Solvent Atoms | 356 |
Heterogen Atoms | 97 |
Software
Software | |
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Software Name | Purpose |
XDS | data reduction |
STARANISO | data scaling |
autoPROC | data scaling |
Aimless | data scaling |
BUSTER | refinement |
PHASER | phasing |
autoPROC | data processing |