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Crystal Structure of the E. coli Histidine Kinase NarX Sensor Domain in Complex with Nitrate
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 8.5 277 ammonium phosphate, pH 8.5, vapor diffusion, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.29 46.22
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 55.76 α = 90 b = 55.76 β = 90 c = 155.257 γ = 90
Symmetry Space Group P 43 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD 2000-09-22 M MAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X4A 0.9673, 0.9786, 0.9794, 0.9904 NSLS X4A
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.7 25 98.4 0.046 20.1 27197
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.7 1.76 99 0.25 2648
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MAD THROUGHOUT 1.7 24.94 27155 1355 97.9 0.217 0.2274 0.258 0.2687 RANDOM 32.3
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] 5.23 5.23 -10.45
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 18.9 c_scangle_it 6.7 c_scbond_it 4.78 c_mcangle_it 3.22 c_mcbond_it 2.52 c_angle_deg 1.7 c_improper_angle_d 1.23 c_bond_d 0.017
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1819 Nucleic Acid Atoms Solvent Atoms 255 Heterogen Atoms 4
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling SOLVE phasing DM phasing CNS refinement PDB_EXTRACT data extraction