2YK4
Structure of Neisseria LOS-specific sialyltransferase (NST).
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2YK5 | PDB ENTRY 2YK5 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 4.4 | PROTEIN WAS CRYSTALLIZED BY VAPOR DIFFUSION METHODS USING DROPS OF PROTEIN MIXED WITH AN EQUAL VOLUME OF PRECIPITANT: 100 MM SODIUM ACETATE (PH 4.2 - 4.4) 1.7 M DI-AMMONIUM SULFATE. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.97 | 58.65 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 86.565 | ¦Á = 90 |
b = 124.735 | ¦Â = 90 |
c = 41.866 | ¦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 | CCD | ADSC QUANTUM 315r | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALS BEAMLINE 8.2.2 | ALS | 8.2.2 |
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 | 1.94 | 71.07 | 100 | 0.01 | 35.5 | 8.8 | 34365 | 2 |
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 | 1.94 | 1.97 | 99.9 | 0.05 | 3.22 | 8.5 |
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 | PDB ENTRY 2YK5 | 1.94 | 71.07 | 32604 | 1735 | 99.92 | 0.19639 | 0.19499 | 0.22274 | RANDOM | 32.485 |
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] | |
-1.39 | 0.23 | 1.16 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.987 |
r_dihedral_angle_4_deg | 18.939 |
r_dihedral_angle_3_deg | 16.014 |
r_dihedral_angle_1_deg | 7.56 |
r_scangle_it | 3.953 |
r_scbond_it | 2.576 |
r_mcangle_it | 1.82 |
r_angle_refined_deg | 1.619 |
r_mcbond_it | 1.036 |
r_chiral_restr | 0.106 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2642 |
Nucleic Acid Atoms | |
Solvent Atoms | 253 |
Heterogen Atoms | 59 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
MOLREP | phasing |