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Calcium-activated chloride channel bestrophin-1 (BEST1), triple mutant: I76A, F80A, F84A; in complex with an Fab antibody fragment, chloride, and calcium
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4RDQ PDB ID 4RDQ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4 293 6% Peg 4000
50 mM sodium acetate pH 4.0
20% glycerol
75 mM NaCl
75 mM KCl
10 mM Tris-HCl pH 7.5
0.5 mM Cymal-6-NG (Anatrace)
Crystal Properties Matthews coefficient Solvent content 4.36 71.77
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 98.243 α = 90 b = 243.878 β = 93.84 c = 172.052 γ = 90
Symmetry Space Group P 1 21 1
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 2014-12-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 23-ID-D 1.033 APS 23-ID-D
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 38 99.9 9.7 9.5 145877 -3 82
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 3.1 3.15 99.9 0.604 1.2 9.7
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-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 ID 4RDQ 3.1 37.952 145754 7264 99.9 0.2176 0.2186 0.2425 0.243 From PDB ID 4RDQ 101.2
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]
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 30640 Nucleic Acid Atoms Solvent Atoms 10 Heterogen Atoms 55
Software Software Software Name Purpose PHENIX refinement CNS refinement HKL-3000 phasing