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 2W4H | pdb_00002w4h

Isometrically contracting insect asynchronous flight muscle quick frozen after a quick release step


ELECTRON MICROSCOPY
Sample
ISOMETRICALLY CONTRACTING ASYNCHRONOUS INSECT FLIGHT MUSCLE FROM THE LARGE WATERBUG LETHOCERUS INDICUS
Specimen Preparation
Sample Aggregation StateFILAMENT
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles
Reported Resolution (Å)
Resolution Method
Other DetailsNOTE THAT OUR LOWEST RESOLUTION DATA IS AT INVERSE 1 MICRON. NUMBER OF FOURIER COEFFICIENTS IS ALMOST A HALF MILLION. THESE COORDINATES WERE FITTED TO ...NOTE THAT OUR LOWEST RESOLUTION DATA IS AT INVERSE 1 MICRON. NUMBER OF FOURIER COEFFICIENTS IS ALMOST A HALF MILLION. THESE COORDINATES WERE FITTED TO AVERAGED SUBVOLUMES OBTAINED FROM A DUAL AXIS TOMOGRAM. THE FITTING WAS DONE MANUALLY USING THE CRYSTALLOGRAPHIC MODEL FITTING PROGRAM O. THERE ARE 14 MODELS.
Refinement Type
Symmetry TypeHELICAL
Data Acquisition
Detector TypeTVIPS TEMCAM-F224 (2k x 2k)
Electron Dose (electrons/Å**2)
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI/PHILIPS CM300FEG/T
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)-72
Maximum Tilt Angle (degrees)72
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging DetailsNONE