1D6S
CRYSTAL STRUCTURE OF THE K41A MUTANT OF O-ACETYLSERINE SULFHYDRYLASE COMPLEXED IN EXTERNAL ALDIMINE LINKAGE WITH METHIONINE
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 297 | 30 % PEG 4000 8 % ETHANOL 100 MM TRIS (PH 7.0) 150 MM LI2SO4, VAPOR DIFFUSION, HANGING DROP, temperature 297K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.83 | 56.55 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 96.94 | ¦Á = 90 |
b = 149.93 | ¦Â = 90 |
c = 53.64 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
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 | MARRESEARCH | 1997-11-05 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | ELLIOTT GX-20 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2.3 | 30 | 0.105 | 15.3 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | 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 | THROUGHOUT | 2.3 | 29.67 | 32175 | 1600 | 90.4 | 0.174 | 0.174 | 0.223 | RANDOM | 33.6 |
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] | |
-10.3 | -4.79 | 15.09 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 23.8 |
x_angle_deg | 1.6 |
x_improper_angle_d | 1.52 |
x_bond_d | 0.011 |
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 | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 4834 |
Nucleic Acid Atoms | |
Solvent Atoms | 233 |
Heterogen Atoms | 48 |
Software
Software | |
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Software Name | Purpose |
AMoRE | phasing |
X-PLOR | refinement |
MOSFLM | data reduction |
CCP4 | data scaling |