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Structural basis of coreceptor recognition by HIV-1 envelope spike
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5UIW experimental model PDB 1WIO experimental model PDB 2QAD experimental model PDB 5VN3
Sample C-C chemokine receptor type 5 (CCR5) in complex with T-cell surface glycoprotein CD4 and HIV1 envelope glycoprotein gp120 Sample Components Envelope glycoprotein gp160 T-cell surface glycoprotein CD4 C-C chemokine receptor type 5
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 307346 Reported Resolution (Å) 3.9 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (5UIW, 1WIO, 2QAD, 5VN3) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value 200 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 46
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode OTHER Specimen Holder Model OTHER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM 9.03 CTF CORRECTION CTFFIND 4.1.8 MODEL FITTING UCSF Chimera RECONSTRUCTION RELION 2.1 MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION