3N5Y

Structure of neuronal nitric oxide synthase heme domain in complex with 6,6'-(2,2'-(pyridine-2,6-diyl)bis(ethane-2,1-diyl))bis(4-methylpyridin-2-amine)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1OM4PDB entry 1OM4

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.827720-24% PEG3350 100mM MES 100-140mM ammonium acetate 5mM GSH, 35uM SDS, pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 277.0K
Crystal Properties
Matthews coefficientSolvent content
2.448.82

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 51.71α = 90
b = 110.61β = 90
c = 164.08γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315mirror2008-11-30MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL7-10.976SSRLBL7-1

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
12.055099.40.0660.06621.2460097-331.2
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)
2.052.0994.60.5640.5641.93.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 SYNTHESISTHROUGHOUTPDB entry 1OM42.0543.7356712293899.40.186090.183950.22797RANDOM43.433
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]
-0.18-0.090.26
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.709
r_dihedral_angle_4_deg18.452
r_dihedral_angle_3_deg14.882
r_dihedral_angle_1_deg5.713
r_scangle_it3.062
r_scbond_it1.922
r_angle_refined_deg1.316
r_mcangle_it1.111
r_mcbond_it0.591
r_chiral_restr0.088
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.709
r_dihedral_angle_4_deg18.452
r_dihedral_angle_3_deg14.882
r_dihedral_angle_1_deg5.713
r_scangle_it3.062
r_scbond_it1.922
r_angle_refined_deg1.316
r_mcangle_it1.111
r_mcbond_it0.591
r_chiral_restr0.088
r_bond_refined_d0.012
r_gen_planes_refined0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6658
Nucleic Acid Atoms
Solvent Atoms358
Heterogen Atoms181

Software

Software
Software NamePurpose
REFMACrefinement
CNSrefinement
Blu-Icedata collection
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing