3MEB
Structure of cytoplasmic aspartate aminotransferase from giardia lamblia
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 290 | HR INDEX SCREEN G3: 20% PEG 3350, 200MM LI2 SULPHATE, 100MM BISTRISPROPANE, GILAA.01471.A AT 35 MG/ML, PH 6.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 290K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.54 | 52 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 58.58 | α = 90 |
b = 101.15 | β = 90.62 |
c = 81.53 | γ = 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 | CCD | RIGAKU SATURN 944 | Rigaku VariMax HF | 2010-02-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.5418 |
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 | 1.9 | 50 | 95.8 | 0.091 | 9.85 | 2.7 | 74816 | 71707 | -3 | 19.09 |
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 | 1.9 | 1.95 | 87.3 | 0.336 | 3 | 1.8 | 5548 |
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 | THROUGHOUT | pdb entry 2cst modified with CCP4 program CHAINSAW | 1.9 | 47.81 | 74816 | 71615 | 3613 | 95.8 | 0.176 | 0.176 | 0.174 | 0.214 | RANDOM | 4.66 |
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] | |
-0.76 | -0.25 | 1.54 | -0.79 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 31.669 |
r_dihedral_angle_4_deg | 18.696 |
r_dihedral_angle_3_deg | 13.34 |
r_dihedral_angle_1_deg | 5.89 |
r_scangle_it | 2.773 |
r_scbond_it | 1.794 |
r_angle_refined_deg | 1.43 |
r_mcangle_it | 1.054 |
r_angle_other_deg | 0.931 |
r_mcbond_it | 0.598 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6612 |
Nucleic Acid Atoms | |
Solvent Atoms | 809 |
Heterogen Atoms | 108 |
Software
Software | |
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Software Name | Purpose |
StructureStudio | data collection |
PHASER | phasing |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |