3B0J

M175E mutant of assimilatory nitrite reductase (Nii3) from tobbaco leaf


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION8.5277PEG4000, Tris-HCl, MgCl2, MPD, pH 8.5, vapor diffusion, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.6553.51

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 133.551α = 90
b = 133.551β = 90
c = 77.805γ = 90
Symmetry
Space GroupP 4 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 210rRh-coated Si single crystal mirror2009-10-25MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPHOTON FACTORY BEAMLINE AR-NW12A1.0Photon FactoryAR-NW12A

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
11.75098.40.0780.07838.2811.9762437642323
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.71.7693.70.431710.47152

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)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 REPLACEMENTTHROUGHOUT3B0G1.730.69760597223938201000.15810.15810.15710.1762RANDOM16.7332
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]
-0.14-0.140.29
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.623
r_dihedral_angle_4_deg12.959
r_dihedral_angle_3_deg12.559
r_dihedral_angle_1_deg5.966
r_scangle_it3.301
r_scbond_it1.996
r_angle_refined_deg1.293
r_mcangle_it1.129
r_mcbond_it0.579
r_nbtor_refined0.304
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.623
r_dihedral_angle_4_deg12.959
r_dihedral_angle_3_deg12.559
r_dihedral_angle_1_deg5.966
r_scangle_it3.301
r_scbond_it1.996
r_angle_refined_deg1.293
r_mcangle_it1.129
r_mcbond_it0.579
r_nbtor_refined0.304
r_nbd_refined0.208
r_symmetry_hbond_refined0.203
r_symmetry_vdw_refined0.171
r_xyhbond_nbd_refined0.169
r_metal_ion_refined0.133
r_chiral_restr0.087
r_bond_refined_d0.011
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4248
Nucleic Acid Atoms
Solvent Atoms800
Heterogen Atoms74

Software

Software
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing