3A7E
Crystal structure of human COMT complexed with SAM and 3,5-dinitrocatechol
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1VID | PDB ENTRY 1VID |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 293 | 0.1M Hepes pH7.5, 2% (v/v) PEG 400, 2.0M (NH4)2SO4, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.62 | 53.03 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 50.909 | α = 90 |
b = 50.909 | β = 90 |
c = 168.186 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 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 JUPITER 210 | 2003-03-21 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SPRING-8 BEAMLINE BL32B2 | 1.54180 | SPring-8 | BL32B2 |
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 | 2.8 | 28 | 100 | 0.163 | 0.137 | 4.9 | 3.4 | 6717 | 6727 | 38.4 |
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) | ||||||||||
2.8 | 2.95 | 99.9 | 0.334 | 0.352 | 12.7 | 3.5 | 955 |
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 1VID | 2.8 | 10 | 5888 | 654 | 100 | 0.22558 | 0.21769 | 0.29819 | RANDOM | 38.503 |
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] | |
0.19 | 0.1 | 0.19 | -0.29 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.618 |
r_dihedral_angle_3_deg | 18.171 |
r_dihedral_angle_4_deg | 16.248 |
r_dihedral_angle_1_deg | 4.475 |
r_scangle_it | 3.184 |
r_scbond_it | 1.91 |
r_mcangle_it | 1.195 |
r_angle_refined_deg | 0.912 |
r_mcbond_it | 0.604 |
r_chiral_restr | 0.067 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1660 |
Nucleic Acid Atoms | |
Solvent Atoms | 46 |
Heterogen Atoms | 42 |
Software
Software | |
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Software Name | Purpose |
BSS | data collection |
AMoRE | phasing |
REFMAC | refinement |
MOSFLM | data reduction |
SCALA | data scaling |