2CJS
Structural Basis for a Munc13-1 Homodimer - Munc13-1 - RIM Heterodimer Switch: C2-domains as Versatile Protein-Protein Interaction Modules
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 4.5 | 293 | VAPOR DIFFUSION; HANGING DROP; PROTEIN: 10 MG/ML MUNC13-1/RIM2ALPHA IN 30 MM TRIS, 150 MM NACL AND 1 MM TCEP, PH 7.4); RESERVOIR: 0.3 M AMMONIUM TARTRATE (PH 7.0); DROP: 1 MICROLITER PROTEIN PLUS 1 MICROLITER RESERVOIR; TEMPERATURE: 20 DEGREES CELSIUS; CRYSTALS APPEARED OVERNIGHT AND GREW TO A FINAL SIZE OF ABOUT 0.06 MM X 0.06 MM X 0.25 MM WITHIN 4 DAYS. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3 | 59.3 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 50.248 | α = 90 |
b = 93.534 | β = 90 |
c = 113.128 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 CCD | 2005-02-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 19-ID | APS | 19-ID |
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 | 1.78 | 37.57 | 99.7 | 0.06 | 36.1 | 5 | 51718 | -3 |
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 | 1.78 | 1.81 | 99.6 | 0.7 | 2.8 | 4.8 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | 1.78 | 50 | 50187 | 1593 | 99.7 | 0.176 | 0.175 | 0.219 | RANDOM | 30.79 |
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] | |
-1.38 | 0.82 | 0.55 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.18 |
r_dihedral_angle_4_deg | 16.535 |
r_dihedral_angle_3_deg | 14.488 |
r_dihedral_angle_1_deg | 6.528 |
r_scangle_it | 4.431 |
r_scbond_it | 2.893 |
r_mcangle_it | 1.982 |
r_angle_refined_deg | 1.752 |
r_mcbond_it | 1.339 |
r_nbtor_refined | 0.31 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2949 |
Nucleic Acid Atoms | |
Solvent Atoms | 340 |
Heterogen Atoms | 58 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHASER | phasing |