4ATX

Rigor kinesin motor domain with an ordered neck-linker, docked on tubulin dimer, modelled into the 8A cryo-EM map of doublecortin- microtubules decorated with kinesin

ELECTRON MICROSCOPY

Sample
DOUBLECORTIN-STABILISED MICROTUBULES DECORATED WITH KINESIN MOTOR DOMAINS

Specimen Preparation
Sample Aggregation State	FILAMENT
Vitrification Instrument	FEI VITROBOT MARK I
Cryogen Name	ETHANE
Sample Vitrification Details	CRYOGEN- ETHANE, HUMIDITY- 100, INSTRUMENT- FEI VITROBOT

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	168000
Reported Resolution (Å)	8.2
Resolution Method
Other Details	A HOMOLOGY MODEL OF RAT KINESIN MOTOR DOMAIN MUTANT T93N WAS GENERATED USING MODELLER, BASED ON THE STRUCTURE OF HUMAN KINESIN 1BG2. 2) KINESIN LOOP11 ...	A HOMOLOGY MODEL OF RAT KINESIN MOTOR DOMAIN MUTANT T93N WAS GENERATED USING MODELLER, BASED ON THE STRUCTURE OF HUMAN KINESIN 1BG2. 2) KINESIN LOOP11 (AA 237-254) WAS OMITTED IN THIS MODEL AS NO CRYSTAL STRUCTURE REFLECTED THE CONFORMATION OF LOOP11 VISUALISED IN THE EM MAP SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2098. (DEPOSITION ID: 10790).
Refinement Type
Symmetry Type	HELICAL

Map-Model Fitting and Refinement
Id	1 (2XRP, 1BG2)
Refinement Space	REAL
Refinement Protocol	RIGID BODY FIT
Refinement Target	Cross-correlation coefficient
Overall B Value
Fitting Procedure
Details	METHOD--RIGID BODY

Data Acquisition
Detector Type	KODAK SO-163 FILM
Electron Dose (electrons/Å**2)	15

Imaging Experiment	1
Date of Experiment	2009-09-01
Temperature (Kelvin)	93
Microscope Model	FEI TECNAI F20
Minimum Defocus (nm)	760
Maximum Defocus (nm)	2900
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	50000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	Flex-EM
MODEL FITTING	UCSF Chimera
RECONSTRUCTION	FREALIGN
RECONSTRUCTION	SPIDER

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
	DONE WITH FREALIGN

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.