3N5T

Structure of endothelial nitric oxide synthase heme domain complexed with 6,6'-(2,2'-(pyridine-3,5-diyl)bis(ethane-2,1-diyl))bis(4-methylpyridin-2-amine)


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.52789-12% PEG 3350, 0.2M magnesium acetate, 0.1M sodium cacodylate, 0.005M TCEP-HCl , pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 278K
Crystal Properties
Matthews coefficientSolvent content
2.4649.9

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.12α = 90
b = 106.744β = 90
c = 157.382γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315rmirrors2008-11-29MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL7-11.0SSRLBL7-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.525099.80.0830.08314.953.633841-350.6
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.522.5699.80.5590.5591.853.61646

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONFOURIER SYNTHESISTHROUGHOUT2.5242.8232111166699.80.188620.185530.24801RANDOM46.99
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]
0.15-0.1-0.05
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.999
r_dihedral_angle_4_deg18.619
r_dihedral_angle_3_deg18.584
r_dihedral_angle_1_deg6.305
r_scangle_it3
r_scbond_it1.842
r_angle_refined_deg1.531
r_mcangle_it1.151
r_mcbond_it0.604
r_chiral_restr0.095
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.999
r_dihedral_angle_4_deg18.619
r_dihedral_angle_3_deg18.584
r_dihedral_angle_1_deg6.305
r_scangle_it3
r_scbond_it1.842
r_angle_refined_deg1.531
r_mcangle_it1.151
r_mcbond_it0.604
r_chiral_restr0.095
r_bond_refined_d0.014
r_gen_planes_refined0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6429
Nucleic Acid Atoms
Solvent Atoms138
Heterogen Atoms199

Software

Software
Software NamePurpose
REFMACrefinement
CNSrefinement
APEXdata collection
HKL-2000data reduction
HKL-2000data scaling
CNSphasing