2AMO

Loose Dimer of a Bacillus subtilis Nitric Oxide Synthase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.5298Na Cacoldylate, Potassium Acetate, Peg4K, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthew coefficientSolvent content
2.750

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 81.314α = 90
b = 93.211β = 90
c = 118.546γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray193CCDADSC QUANTUM 42001-10-22MSINGLE WAVELENGTH
21x-ray193CCDADSC QUANTUM 42004-06-24MSINGLE WAVELENGTH
31
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONCHESS BEAMLINE F20.92CHESSF2
2SYNCHROTRONNSLS BEAMLINE X26C0.93NSLSX26C
3SYNCHROTRONNSLS BEAMLINE X12C0.9NSLSX12C

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
1,22.63098.42323411
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.62.6593.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB Entry 1M7Z2.629.621232341174950.2750.27560.27410.28969RANDOM60.878
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]
-5.15-2.257.4
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.376
r_dihedral_angle_4_deg23.022
r_dihedral_angle_3_deg14.611
r_scangle_it5.643
r_scbond_it3.795
r_mcangle_it2.541
r_angle_refined_deg1.812
r_mcbond_it1.522
r_dihedral_angle_1_deg1.256
r_symmetry_vdw_refined0.259
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.376
r_dihedral_angle_4_deg23.022
r_dihedral_angle_3_deg14.611
r_scangle_it5.643
r_scbond_it3.795
r_mcangle_it2.541
r_angle_refined_deg1.812
r_mcbond_it1.522
r_dihedral_angle_1_deg1.256
r_symmetry_vdw_refined0.259
r_nbd_refined0.242
r_symmetry_hbond_refined0.193
r_xyhbond_nbd_refined0.142
r_chiral_restr0.116
r_gen_planes_refined0.013
r_bond_refined_d0.01
r_bond_other_d
r_metal_ion_refined
r_metal_ion_other
r_gen_planes_other
r_symmetry_vdw_other
r_sphericity_bonded
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_nbd_other
r_mcbond_other
r_nbtor_refined
r_nbtor_other
r_angle_other_deg
r_rigid_bond_restr
r_sphericity_free
r_xyhbond_nbd_other
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5737
Nucleic Acid Atoms
Solvent Atoms280
Heterogen Atoms86

Software

Software
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
AMoREphasing