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Crystal structure of a Kir3.1-prokaryotic Kir channel chimera
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1N9P PDB ENTRIES 1N9P, 1P7B experimental model PDB 1P7B PDB ENTRIES 1N9P, 1P7B
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.2 293 10-15% (w/v) PEG 4000, 0.05M sodium citrate, 0.2M potassium phosphate, 0.08M bis-tris, 0.12M KCl, 0.003M dithiothreitol, 0.02M tris (2-carboxyethyl) phosphine hydrochloride, 0.0026M 1,2-dihexanoyl phosphatidylinositol 4,5-biphosphate, 0.016M nonylglucoside , pH 6.2, VAPOR DIFFUSION, SITTING DROP, temperature 293.0K
Crystal Properties Matthews coefficient Solvent content 3.1 60.3
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 98.416 α = 90 b = 98.416 β = 90 c = 92.624 γ = 90
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 ADSC QUANTUM 315 2006-08-02 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X29A 1.1000 NSLS X29A
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 2.2 100 97.9 0.054 17 3.7 43991 43991 -3 46.1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.2 2.28 99.7 0.309 3.9 3.7 4450
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRIES 1N9P, 1P7B 2.2 29.5 43987 43987 2179 97.9 0.232 0.232 0.231 0.233 0.256 0.2575 RANDOM 51.229
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] -1.324 -1.324 2.648
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_deg 23.3 c_scangle_it 2.87 c_mcangle_it 2.68 c_scbond_it 1.92 c_mcbond_it 1.58 c_angle_deg 1.28 c_improper_angle_deg 0.78 c_bond_d 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4660 Nucleic Acid Atoms Solvent Atoms 226 Heterogen Atoms 33
Software Software Software Name Purpose CNS refinement PDB_EXTRACT data extraction HKL-2000 data collection HKL-2000 data reduction HKL-2000 data scaling MOLREP phasing