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Cryo-EM structure of human insulin degrading enzyme in complex with insulin
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 9.016 f_angle_d 1.049 f_chiral_restr 0.059 f_plane_restr 0.008 f_bond_d 0.006
Sample Insulin bound insulin degrading enzyme
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument HOMEMADE PLUNGER Cryogen Name ETHANE Sample Vitrification Details Grids made using Spotiton
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 148392 Reported Resolution (Å) 3.7 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value 111.9 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 71.4
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 940 Maximum Defocus (nm) 2200 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 22500 Calibrated Magnification 46598 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION DoG Picker IMAGE ACQUISITION Leginon 3.3 CTF CORRECTION Gctf Gctf_v0.50_sm_30_cu7.5X86_64 MODEL FITTING Coot 0.89_Pre MODEL FITTING UCSF Chimera 1.11.2 INITIAL EULER ASSIGNMENT RELION 2.0 CLASSIFICATION RELION 2.0 RECONSTRUCTION RELION 2.1 MODEL REFINEMENT PHENIX 1.02-2829
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 762283