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X-ray crystal structure of a de novo designed antiparallel coiled-coil homotetramer with 3 heptad repeats, apCC-Tet*3
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold AlphaFold model
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 293 1.4 M sodium citrate tribasic dihydrate
0.1 M sodium HEPES pH 7.5
Crystal Properties Matthews coefficient Solvent content 2.14 42.42
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 49.028 α = 90 b = 49.028 β = 90 c = 32.618 γ = 120
Symmetry Space Group P 32 2 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 2021-11-07 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID30B 0.9253 ESRF ID30B
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 1.4 42.46 98.1 0.031 0.038 0.021 0.995 15.2 3.1 8997 16.64
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 1.4 1.42 95.9 0.396 0.501 0.299 0.505 2.7
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT AlphaFold model 1.42 42.46 1.4 8586 425 97.38 0.2014 0.1995 0.2319 0.242 28.423
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 352 Nucleic Acid Atoms Solvent Atoms 9 Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement DIALS data reduction Aimless data scaling PHASER phasing