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Racemic-GSTSTA from degenerate octameric repeats in InaZ, residues 707-712
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 14.03 α = 90 b = 9.22 β = 104.48 c = 20.77 γ = 90
Symmetry Space Group P 1 21/c 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 electron 2017-11-27
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim 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 0.9 7.629 77.6 0.128 0.151 0.991 5.46 3.401 2906 46.14
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 0.9 0.92 79.9 0.332 0.387 0.962 2.52 3.165
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 THROUGHOUT 0.9 7.629 1.4 2896 290 77.43 0.2342 0.2325 0.2634 0.2518 0.3038 3.552
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 7.023 f_angle_d 1.119 f_chiral_restr 0.071 f_bond_d 0.008 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 36 Nucleic Acid Atoms Solvent Atoms 3 Heterogen Atoms
Software Software Software Name Purpose XSCALE data scaling PHENIX refinement PDB_EXTRACT data extraction XDS data reduction SHELXD phasing
Sample L-GSTSTA from ice nucleation protein, inaZ, and its enantiomer, D-GSTSTA
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 14.03 Length b 9.22 Length c 9.22 Angle Alpha 90 Angle Beta 104.5 Angle Gamma 90
Map-Model Fitting and Refinement Id 1 Refinement Space RECIPROCAL Refinement Protocol AB INITIO MODEL Refinement Target maximum likelihood Overall B Value Fitting Procedure Details
Data Acquisition Detector Type TVIPS TEMCAM-F416 (4k x 4k) Electron Dose (electrons/Å**2) 0.01
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TECNAI F20 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 FITTING Coot 0.8.9.1 CRYSTALLOGRAPHY MERGING XSCALE RECONSTRUCTION SHELXD MODEL REFINEMENT PHENIX 1.12_2829
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE