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Crystal Structure of a Histidine Kinase Sensor Domain with Similarity to Periplasmic Binding Proteins
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 6 277 isopropanol, PEG3350, calcium acetate, pH 6.0, vapor diffusion, temperature 277K
Crystal Properties Matthews coefficient Solvent content 3.43 64.15
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 122.92 α = 90 b = 122.92 β = 90 c = 81.692 γ = 120
Symmetry Space Group P 65 2 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 2005-09-23 M MAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X4A 0.9870, 0.9795, 0.9791, 0.9715 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 2.4 20 100 0.046 14.7 5.1 14718
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) 2.4 2.49 99.9 0.419 4.2 1434
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 2.4 19.87 14682 735 99.8 0.228 0.2358 0.285 0.2255 RANDOM 55.1
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] -2.99 2.06 -2.99 5.98
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.7 c_scangle_it 8.36 c_scbond_it 6.56 c_mcangle_it 5.95 c_mcbond_it 4.17 c_angle_deg 1.6 c_improper_angle_d 0.93 c_bond_d 0.01
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1809 Nucleic Acid Atoms Solvent Atoms 141 Heterogen Atoms 1
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling SHARP phasing DM phasing CNS refinement PDB_EXTRACT data extraction