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Crystal structure of the human two pore domain potassium ion channel TASK-1 (K2P3.1) in a closed conformation
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4BW5
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.5 293 0.1 M TRIS pH 8.5, 0.05 M KCl, 32% v/v PEG400, 3% w/v sucrose
Crystal Properties Matthews coefficient Solvent content 4.58 73.14
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 45.14 α = 90 b = 204.79 β = 90 c = 238.34 γ = 90
Symmetry Space Group P 2 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 PIXEL DECTRIS PILATUS3 6M 2018-03-09 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON DIAMOND BEAMLINE I24 0.9686 Diamond I24
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) 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 3 47.668 79.7 0.215 0.239 0.103 0.993 5.6 5.3 36417 75.54
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 3 3.12 37.2 1.021 1.124 0.464 0.697 1.9 5.7
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) 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 4BW5 3 47.04 36373 1756 79.7 0.254 0.253 0.263 0.257 0.2641 RANDOM 66.77
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] -13.8238 10.7283 3.0955
RMS Deviations Key Refinement Restraint Deviation t_other_torsion 17.91 t_omega_torsion 2.03 t_angle_deg 0.9 t_bond_d 0.008 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it
RMS Deviations Key Refinement Restraint Deviation t_other_torsion 17.91 t_omega_torsion 2.03 t_angle_deg 0.9 t_bond_d 0.008 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it t_nbd t_improper_torsion t_chiral_improper_torsion t_sum_occupancies t_utility_distance t_utility_angle t_utility_torsion t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 8009 Nucleic Acid Atoms Solvent Atoms 31 Heterogen Atoms 426
Software Software Software Name Purpose BUSTER refinement XDS data reduction XSCALE data scaling STARANISO data scaling PHASER phasing