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KVQIINKKL, crystal structure of a tau protein fragment
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5V5B PDB entry 5V5B
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 291 0.2 M lithium citrate, 20% PEG3350
Crystal Properties Matthews coefficient Solvent content 2.54 51.58
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 62.906 α = 90 b = 62.906 β = 90 c = 4.832 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 electron 88 CMOS TVIPS F416 CMOS CAMERA 2017-01-19 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ELECTRON MICROSCOPE TECNAI F20 TEM 0.0251
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 1.994 90 97.1 0.244 2.7 6 943 22.14
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 2 2.15 96.7 0.681 4.9
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-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B ELECTRON CRYSTALLOGRAPHY MOLECULAR REPLACEMENT THROUGHOUT PDB entry 5V5B 1.994 27.24 1.36 934 84 96.39 0.2638 0.2601 0.277 0.2991 0.3366 18.6573
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]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.503 f_angle_d 1.399 f_chiral_restr 0.114 f_bond_d 0.01 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 76 Nucleic Acid Atoms Solvent Atoms 3 Heterogen Atoms
Software Software Software Name Purpose SCALEPACK data scaling PHENIX refinement PDB_EXTRACT data extraction DENZO data reduction PHASER phasing
Sample KVQIINKKL Tau peptide
Specimen Preparation Sample Aggregation State 3D ARRAY Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method CRYSTALLOGRAPHY Number of Particles Reported Resolution (Å) Resolution Method DIFFRACTION PATTERN/LAYERLINES Other Details Refinement Type Symmetry Type 3D CRYSTAL Space Group Name Length a 62.906 Length b 62.906 Length c 62.906 Angle Alpha 90 Angle Beta 90 Angle Gamma 90
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type TVIPS TEMCAM-F416 (4k x 4k) Electron Dose (electrons/Å**2) 0.1
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TECNAI 20 Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode DIFFRACTION Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version MODEL REFINEMENT PHENIX 1.11.1_2575
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE