4JRE

Crystal structure of nitrate/nitrite exchanger NarK with nitrite bound


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP3.527728% PEG400, 0.1 M citric acid pH 3.5, 0.1M NaCl and 0.1M Li2SO4. The crystal was subsequently soaked with 50mM NaNO2 in the above solution prior to freezing, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
4.1470.31

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 81.91α = 100.07
b = 81.407β = 96.38
c = 138.487γ = 115.92
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152012-08-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.20.99999ALS8.2.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.85094.60.1587.93.6722831.157.7
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.82.8576.30.8661.12.92893

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 (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 4JR92.8507213668494364294.530.225670.223370.2686RANDOM57.172
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]
-0.68-0.23-1.11-0.11.650.91
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.015
r_dihedral_angle_3_deg20.783
r_dihedral_angle_4_deg17.516
r_dihedral_angle_1_deg6.018
r_angle_refined_deg1.29
r_chiral_restr0.085
r_bond_refined_d0.008
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms12522
Nucleic Acid Atoms
Solvent Atoms35
Heterogen Atoms32

Software

Software
Software NamePurpose
BOSdata collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling