3MTU
Structure of the Tropomyosin Overlap Complex from Chicken Smooth Muscle
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 293 | 16% MePEG 5000, 100 mM MES, pH 6.0, 140 mM CaCl2, 2% methanol , VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.62 | 53.02 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 89.131 | α = 90 |
b = 285.328 | β = 90 |
c = 43.457 | γ = 90 |
Symmetry | |
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Space Group | C 2 2 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 | CCD | ADSC QUANTUM 210r | 2009-01-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 19-BM | 0.9793 | APS | 19-BM |
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 | 2.1 | 30 | 99.8 | 0.104 | 23 | 11.8 | 33163 | 33097 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
2.1 | 2.14 | 99.1 | 3.6 | 11.1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | SAD | THROUGHOUT | 2.1 | 29.87 | 31538 | 31424 | 1666 | 99.64 | 0.20298 | 0.20096 | 0.24113 | RANDOM | 41.193 |
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] | |
1.44 | -0.91 | -0.52 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 40.068 |
r_dihedral_angle_4_deg | 21.251 |
r_dihedral_angle_3_deg | 15.676 |
r_scangle_it | 9.817 |
r_scbond_it | 6.256 |
r_mcangle_it | 4.922 |
r_dihedral_angle_1_deg | 3.956 |
r_mcbond_it | 2.562 |
r_angle_refined_deg | 1.069 |
r_chiral_restr | 0.068 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3320 |
Nucleic Acid Atoms | |
Solvent Atoms | 347 |
Heterogen Atoms | 59 |
Software
Software | |
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Software Name | Purpose |
ADSC | data collection |
MLPHARE | phasing |
REFMAC | refinement |
HKL-3000 | data reduction |
HKL-2000 | data scaling |