1T3M
Structure of the isoaspartyl peptidase with L-asparaginase activity from E. coli
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1AYY | PDB ENTRY 1AYY |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 295 | 15% PEG4000, 15% GLYCEROL, 0.3 M MAGNESIUM NITRATE, 0.1 M BIS-TRIS-HCL, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.63 | 53.21 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 66.318 | α = 90 |
b = 71.637 | β = 90 |
c = 149.583 | 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 | CCD | MAR CCD 165 mm | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 22-ID | 0.98 | APS | 22-ID |
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 | 1.65 | 30 | 98.9 | 0.01 | 12.1 | 4.7 | 84176 | -3 | -3 |
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) | |||||||||||
1.65 | 1.71 | 97.2 | 0.528 | 1.97 | 3.1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R | PDB ENTRY 1AYY | 1.65 | 10 | 74674 | 74674 | 3982 | 86.8 | 0.1729 | 0.1729 | 0.1745 | 0.2167 | RANDOM |
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] | |
Coordinate Error | ||
---|---|---|
Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
21 | 4852.6 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
s_similar_adp_cmpnt | 0.071 |
s_non_zero_chiral_vol | 0.058 |
s_zero_chiral_vol | 0.045 |
s_from_restr_planes | 0.0261 |
s_angle_d | 0.025 |
s_anti_bump_dis_restr | 0.015 |
s_bond_d | 0.009 |
s_similar_dist | |
s_rigid_bond_adp_cmpnt | |
s_approx_iso_adps |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4322 |
Nucleic Acid Atoms | |
Solvent Atoms | 681 |
Heterogen Atoms | 14 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
HKL-2000 | data reduction |
AMoRE | phasing |
SHELXL-97 | refinement |
HKL-2000 | data scaling |