3N61
Structure of neuronal nitric oxide synthase D597N/M336V mutant heme domain in complex with 6,6'-(2,2'-(pyridine-3,5-diyl)bis(ethane-2,1-diyl))bis(4-methylpyridin-2-amine)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1OM4 | PDB entry 1OM4 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 5.8 | 277 | 20-24% PEG3350 100mM MES 100-140mM ammonium acetate 5mM GSH, 35uM SDS, pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.41 | 48.95 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 51.84 | α = 90 |
b = 110.5 | β = 90 |
c = 164.26 | 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 QUANTUM 315 | mirror | 2009-03-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL7-1 | 1.000 | SSRL | BL7-1 |
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 | 1.95 | 50 | 99.7 | 0.066 | 0.066 | 21.1 | 4 | 69511 | -3 | 28.5 |
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) | ||||||||||
1.95 | 1.98 | 98.4 | 0.504 | 0.504 | 1.8 | 3.8 |
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 | FOURIER SYNTHESIS | THROUGHOUT | PDB entry 1OM4 | 1.95 | 38.49 | 65998 | 3424 | 99.69 | 0.18099 | 0.17932 | 0.21323 | RANDOM | 41.227 |
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] | |
-0.11 | -0.14 | 0.24 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.118 |
r_dihedral_angle_4_deg | 16.807 |
r_dihedral_angle_3_deg | 15.555 |
r_dihedral_angle_1_deg | 5.764 |
r_scangle_it | 3.172 |
r_scbond_it | 1.983 |
r_angle_refined_deg | 1.352 |
r_mcangle_it | 1.208 |
r_mcbond_it | 0.666 |
r_chiral_restr | 0.095 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6656 |
Nucleic Acid Atoms | |
Solvent Atoms | 403 |
Heterogen Atoms | 187 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
CNS | refinement |
Blu-Ice | data collection |
DENZO | data reduction |
SCALEPACK | data scaling |
CNS | phasing |