3BO1

Ribosome-SecY complex


ELECTRON MICROSCOPY
Sample
Ribosome-SecY complex
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentHOMEMADE PLUNGER
Cryogen NameETHANE
Sample Vitrification DetailsThe specimens were plunge frozen in liquid ethane at 4 degrees C at an RH of ~90-95%.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles39000
Reported Resolution (Å)9.6
Resolution Method
Other DetailsEMAN
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (1RHZ, 2I2T)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Targetvisual fit in O and Chimera
Overall B Value
Fitting Procedure
DetailsREFINEMENT PROTOCOL--rigid body, followed by manual rebuilding and extension of the loops
Data Acquisition
Detector TypeKODAK SO-163 FILM
Electron Dose (electrons/Å**2)15
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)93
Microscope ModelFEI TECNAI F20
Minimum Defocus (nm)-700
Maximum Defocus (nm)-3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification50000
Calibrated Magnification51000
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging DetailsGatan DH626 cold holder
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
EMAN- phase flipping of particles form the same micrograph