4E2Y
X-ray Structure of the E224Q mutant of TcaB9, a C-3'-Methyltransferase, in Complex with S-Adenosyl-L-Homocysteine and Sugar Product
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3NDJ | PDB ENTRY 3NDJ |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 298 | 1.2-1.6 M sodium/potassium phosphate, 10 mM dTMP, 5 mM S-adenosyl-L-homocysteine, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.38 | 48.32 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 100.365 | ¦Á = 90 |
b = 114.991 | ¦Â = 90 |
c = 38.02 | ¦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 | Bruker Platinum 135 | Montel | 2011-08-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 | 1.54178 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 1.8 | 33 | 97.6 | 0.086 | 0.086 | 10.4 | 4 | 41886 | 40896 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.8 | 1.9 | 94.9 | 0.209 | 0.209 | 3.35 | 2.13 | 5381 |
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 (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 3NDJ | 1.8 | 33 | 40862 | 38801 | 2061 | 97.7 | 0.17791 | 0.17571 | 0.21817 | RANDOM | 17.469 |
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] | |
-0.89 | -0.15 | 1.03 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.203 |
r_dihedral_angle_4_deg | 19.923 |
r_dihedral_angle_3_deg | 14.462 |
r_dihedral_angle_1_deg | 6.766 |
r_scangle_it | 6.193 |
r_scbond_it | 4.067 |
r_mcangle_it | 2.612 |
r_angle_refined_deg | 2.267 |
r_mcbond_it | 1.728 |
r_chiral_restr | 0.153 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3162 |
Nucleic Acid Atoms | |
Solvent Atoms | 306 |
Heterogen Atoms | 62 |
Software
Software | |
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Software Name | Purpose |
PROTEUM PLUS | data collection |
PHASER | phasing |
REFMAC | refinement |
SAINT | data reduction |
SADABS | data scaling |