2G6K

Structure of rat nNOS heme domain (BH4 bound) complexed with NO


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1OM4ODB ENTRY 1OM4

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.6280PEG3350, MES, ammonium acetate, GSH, SDS, pH 5.6, VAPOR DIFFUSION, SITTING DROP, temperature 280K
Crystal Properties
Matthews coefficientSolvent content
2.4449.57

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 51.97α = 90
b = 111.24β = 90
c = 164.15γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315mirrors2005-12-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL1-51.00SSRLBL1-5

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
12500.9580.0520.05210.1462176-323.4
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)
22.030.9240.4070.4072.33.7

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 SYNTHESISTHROUGHOUTODB ENTRY 1OM4249.162112308995.50.2120.2120.248RANDOM46.1
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]
7.4312.9-20.33
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.4
c_scangle_it2.83
c_mcangle_it2.22
c_scbond_it1.95
c_angle_deg1.4
c_mcbond_it1.39
c_improper_angle_d1.12
c_bond_d0.009
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.4
c_scangle_it2.83
c_mcangle_it2.22
c_scbond_it1.95
c_angle_deg1.4
c_mcbond_it1.39
c_improper_angle_d1.12
c_bond_d0.009
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6676
Nucleic Acid Atoms
Solvent Atoms379
Heterogen Atoms157

Software

Software
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing