9BP6

Structure of alpha1B and betaI/IVb microtubule bound to GMPCPP


ELECTRON MICROSCOPY
Sample
alpha1B and betaI/IVb microtubule
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentLEICA EM GP
Cryogen NameETHANE
Sample Vitrification DetailsDouble-cycled GMPCPP microtubules were diluted to 2.5uM in Brb80 buffer. 5 ul of microtubules were applied to glow-discharged cryo-EM grid and allowed ...Double-cycled GMPCPP microtubules were diluted to 2.5uM in Brb80 buffer. 5 ul of microtubules were applied to glow-discharged cryo-EM grid and allowed to absorb for 30 sec.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles124408
Reported Resolution (Å)3.1
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (5N5N)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement TargetCross-correlation
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)56
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification130000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION3.0
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONGctf
MODEL FITTINGCoot
MODEL REFINEMENTPHENIX1.20.1_4487:
MODEL REFINEMENTISOLDE
INITIAL EULER ASSIGNMENTRELION3.0
FINAL EULER ASSIGNMENTRELION3.0
RECONSTRUCTIONRELION3.0
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION124408Manual picking