2AMO
Loose Dimer of a Bacillus subtilis Nitric Oxide Synthase
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1M7Z | PDB Entry 1M7Z |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 298 | Na Cacoldylate, Potassium Acetate, Peg4K, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.7 | 50 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 81.314 | α = 90 |
b = 93.211 | β = 90 |
c = 118.546 | γ = 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 | 193 | CCD | ADSC QUANTUM 4 | 2001-10-22 | M | SINGLE WAVELENGTH | ||||||
2 | 1 | x-ray | 193 | CCD | ADSC QUANTUM 4 | 2004-06-24 | M | SINGLE WAVELENGTH | ||||||
3 | 1 |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CHESS BEAMLINE F2 | 0.92 | CHESS | F2 |
2 | SYNCHROTRON | NSLS BEAMLINE X26C | 0.93 | NSLS | X26C |
3 | SYNCHROTRON | NSLS BEAMLINE X12C | 0.9 | NSLS | X12C |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.6 | 30 | 98.4 | 23234 | 1 | 1 |
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) | ||||||||||||
2.6 | 2.65 | 93.2 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | PDB Entry 1M7Z | 2.6 | 29.62 | 1 | 23234 | 1174 | 95 | 0.275 | 0.2756 | 0.2741 | 0.28969 | RANDOM | 60.878 |
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] | |
-5.15 | -2.25 | 7.4 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 40.376 |
r_dihedral_angle_4_deg | 23.022 |
r_dihedral_angle_3_deg | 14.611 |
r_scangle_it | 5.643 |
r_scbond_it | 3.795 |
r_mcangle_it | 2.541 |
r_angle_refined_deg | 1.812 |
r_mcbond_it | 1.522 |
r_dihedral_angle_1_deg | 1.256 |
r_symmetry_vdw_refined | 0.259 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5737 |
Nucleic Acid Atoms | |
Solvent Atoms | 280 |
Heterogen Atoms | 86 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
SCALEPACK | data scaling |
AMoRE | phasing |