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Crystal structure of a voltage-gated K+ channel pore module in a closed state in lipid membranes, tetragonal crystal form
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3EFF PDB ENTRY 3EFF, 2ATK, 2A79 and 1ORQ experimental model PDB 2ATK PDB ENTRY 3EFF, 2ATK, 2A79 and 1ORQ experimental model PDB 2A79 PDB ENTRY 3EFF, 2ATK, 2A79 and 1ORQ experimental model PDB 1ORQ PDB ENTRY 3EFF, 2ATK, 2A79 and 1ORQ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7 293 26-30% (v/v) PEG-MME-550, 0.5 M to 0.6 M ammonium sulfate, and 50 mM ADA, Lipidic Cubic Phase (LCP) , pH 7.0, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.47 50.3
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.37 α = 90 b = 53.37 β = 90 c = 108.16 γ = 90
Symmetry Space Group P 4 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 MARMOSAIC 300 mm CCD 2011-03-18 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 23-ID-D 1.0330 APS 23-ID-D
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 3.1 50 94.4 0.132 18.6 7.1 2994 80.28
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 3.1 3.21 75 0.92 2.45 5.5
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 PDB ENTRY 3EFF, 2ATK, 2A79 and 1ORQ 3.1 16.4 2674 369 85.11 0.2845 0.2814 0.3102 0.305 0.3303 RANDOM 114.2
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] -6.6701 -6.6701 13.3403
RMS Deviations Key Refinement Restraint Deviation t_angle_deg 1.01 t_bond_d 0.01 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it t_nbd t_omega_torsion
RMS Deviations Key Refinement Restraint Deviation t_angle_deg 1.01 t_bond_d 0.01 t_dihedral_angle_d t_incorr_chiral_ct t_pseud_angle t_trig_c_planes t_gen_planes t_it t_nbd t_omega_torsion t_other_torsion 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 673 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 60
Software Software Software Name Purpose Blu-Ice data collection PHASER phasing BUSTER refinement HKL-2000 data reduction HKL-2000 data scaling