9R4X | pdb_00009r4x

13 protofilament P. falciparum paclitaxel stabilised GDP microtubule


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelOther 
Sample
13 protofilament paclitaxel stabilised GDP microtubule
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification DetailsPaclitaxel stabilized GDP microtubules were applied to a glow discharged grid, incubated for 30 seconds at room temperature following which excess sam ...Paclitaxel stabilized GDP microtubules were applied to a glow discharged grid, incubated for 30 seconds at room temperature following which excess sample was wicked off. This step was repeated again. Purified P. falciparum kinesin 8B-motor domain was immediately added to the grid, and excess sample was drawn out by pipetting. Kinesin was added again and the grid was transferred to a pre-equilibrated Vitrobot. Excess liquid was blotted off, and the grid was plunge frozen in liquid ethane.
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles30442
Reported Resolution (Å)3.2
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC13
Axial Rise9.23
Angular Rotation-27.35
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)50.75
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)600
Maximum Defocus (nm)2400
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification81000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION3.1
IMAGE ACQUISITIONEPU
CTF CORRECTIONCTFFIND4.1
MODEL FITTINGCoot0.9.8.1
MODEL FITTINGISOLDE1.0b3
RECONSTRUCTIONRELION3.1
MODEL REFINEMENTPHENIX1.20.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION140038