ELECTRON MICROSCOPY

Sample

Transient receptor potential

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 5344
Reported Resolution (Å) 3.91
Resolution Method OTHER
Other Details We combined two different maps from the same dataset (D_1300031718_em-additional-volume_P1.map.V4 and D_1300031718_em-additional-volume_P2.map.V4) to generate a composite map (D_1300031718_em-volume_P1.map.V6). The density of the G protein area could not be visualized clearly in the consensus map of this EM dataset. Therefore, we performed focused classification and local refinement to improve the density of the G protein area using symmetry expanded particles with C4 symmetry imposition, which required more number of particles. Finally, the number of particles used to reconstruct additional volume data 1 (D_1300031718_em-additional-volume_P1.map.V4) is 5,344 and the number of particles used to reconstruct additional volume data 2 (D_1300031718_em-additional-volume_P2.map.V4) is 205,343. Furthermore, the resolution stated above is based on map resolution estimates calculated by a validation tool in Phenix, FSC (model) = 0.143.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å2) 40
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS GLACIOS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification ?
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
MODEL REFINEMENT PHENIX ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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