1M1Y
Chemical Crosslink of Nitrogenase MoFe Protein and Fe Protein
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | LIQUID DIFFUSION | 8 | 298 | PEG 6000, NaCl, Cadaverine, Tris, pH 8.0, LIQUID DIFFUSION, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.75 | 55.22 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 113.267 | ¦Á = 90 |
b = 214.937 | ¦Â = 90 |
c = 320.466 | ¦Ã = 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 QUANTUM 4 | 2001-04-05 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 1.005 | SSRL | BL9-2 |
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 | 3.2 | 50 | 81.1 | 0.085 | 0.072 | 13 | 129716 | 105200 | 1 | 1 | 75.2 |
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) | |||||||||||
3.2 | 3.29 | 70.3 | 0.66 | 1.7 | 7522 |
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 (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 3.2 | 50 | 129597 | 105098 | 5293 | 81.1 | 0.279 | 0.279 | 0.279 | 0.329 | RANDOM |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_angle_deg | 1.44 |
c_bond_d | 0.021 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 49244 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 220 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
MOLREP | phasing |
CNS | refinement |