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VITRIFICATION 1 -- CRYOGEN- ETHANE-PROPANE MIXTURE, HUMIDITY- 100, INSTRUMENT- FEI VITROBOT MARK III, METHOD- BLOT FOR 27 SECONDS BEFORE PLUNGING,
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
18899
Reported Resolution (Å)
7.4
Resolution Method
Other Details
THE A SUBUNIT WAS MODELLED USING EVOLUTIONARY CO-VARIANCE. THE N-TERMINAL TRANSMEMBRANE HELICES OF THE B SUBUNIT WERE MODELLED BASED ON TRANSMEMBRANE ...
THE A SUBUNIT WAS MODELLED USING EVOLUTIONARY CO-VARIANCE. THE N-TERMINAL TRANSMEMBRANE HELICES OF THE B SUBUNIT WERE MODELLED BASED ON TRANSMEMBRANE HELIX PREDICTIONS. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3168. (DEPOSITION ID: 13800).
Refinement Type
Symmetry Type
POINT
Point Symmetry
C1
Map-Model Fitting and Refinement
Id
1 (2WSS, 2XND, 2CLY)
Refinement Space
Refinement Protocol
FLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
METHOD--FLEXIBLE FITTING
Data Acquisition
Detector Type
GATAN K2 (4k x 4k)
Electron Dose (electrons/Å**2)
60.3
Imaging Experiment
1
Date of Experiment
2015-03-15
Temperature (Kelvin)
80
Microscope Model
FEI TITAN KRIOS
Minimum Defocus (nm)
1200
Maximum Defocus (nm)
4100
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
2.7
Imaging Mode
BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
18000
Calibrated Magnification
30487
Source
FIELD EMISSION GUN
Acceleration Voltage (kV)
300
Imaging Details
K2 SUMMIT DIRECT DETECTOR DEVICE (GATAN INC.) OPERATED IN SUPER-RESOLUTION MODE WITH A 1.64 ANGSTROM PHYSICAL PIXEL AND 0. 82 ANGSTROM SUPER- RESOLUTION PIXEL. WITH NO SPECIMEN PRESENT, THE RATE OF EXPOSURE OF THE DETECTOR WAS 8 ELECTRONS PER PIXEL PER SECOND. EXPOSURE- FRACTIONATED MOVIES OF 20.1 S WERE RECORDED AS STACKS OF 67 FRAMES, SO THAT SELECTED SPECIMEN AREAS WERE EXPOSED WITH A TOTAL OF 60.3 ELECTRONS PER SQUARE ANGSTROM.