2E2A
ASP81LEU ENZYME IIA FROM THE LACTOSE SPECIFIC PTS FROM LACTOCOCCUS LACTIS
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1E2A |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 6.5 | THE PROTEIN WAS CRYSTALLIZED FROM 0.9M NA ACETATE AND 0.1M NA CACODYLATE AT PH 6.5. HANGING-DROP METHOD WAS USED. THE INITIAL CONCENTRATION OF THE PROTEIN IN THE DROP WAS 5 MG/ML. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.25 | 44.56 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 87.96 | α = 90 |
b = 87.96 | β = 90 |
c = 79.84 | γ = 90 |
Symmetry | |
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Space Group | P 41 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 | CCD | ADSC QUANTUM 4 | 1998-03-30 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X12B | NSLS | X12B |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.1 | 36 | 99.5 | 0.037 | 13.7 | 4.8 | 18726 | 30.6 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.1 | 2.2 | 99.9 | 0.271 | 2.7 | 4.2 |
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-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | OTHER | THROUGHOUT | 1E2A | 2.1 | 20 | 18682 | 1836 | 99.2 | 0.198 | 0.249 | RANDOM | 45.9 |
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] | |
2.58 | 2.58 | -5.16 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 16.3 |
c_scangle_it | 6.32 |
c_scbond_it | 4.62 |
c_mcangle_it | 3.73 |
c_mcbond_it | 2.83 |
c_angle_deg | 1.5 |
c_improper_angle_d | 1.15 |
c_bond_d | 0.176 |
c_bond_d_na | |
c_bond_d_prot |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2335 |
Nucleic Acid Atoms | |
Solvent Atoms | 173 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
MOSFLM | data reduction |
CNS | refinement |
CNS | phasing |