4AQV

Model of human kinesin-5 motor domain (3HQD) and mammalian tubulin heterodimer (1JFF) docked into the 9.7-angstrom cryo-EM map of microtubule-bound kinesin-5 motor domain in the AMPPPNP state.


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3HQD 
experimental modelPDB 1JFF 
Sample
13-PROTOFILAMENT MICROTUBULE-BOUND HUMAN KINESIN-5 MOTOR DOMAIN WITH AMPPNP
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK I
Cryogen NameETHANE
Sample Vitrification DetailsCRYOGEN- ETHANE, HUMIDITY- 100, INSTRUMENT- FEI VITROBOT MARK I, METHOD- CHAMBER AT 24 DEGREES C, BLOT 2.5 SEC,
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles3587
Reported Resolution (Å)9.7
Resolution Method
Other DetailsTHE N-TERMINAL RESIDUES 6 TO 16 WERE BUILT MANUALLY IN THE EM DENSITY. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2077. (DEPOSITION ID: 10751 ...THE N-TERMINAL RESIDUES 6 TO 16 WERE BUILT MANUALLY IN THE EM DENSITY. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2077. (DEPOSITION ID: 10751).
Refinement Type
Symmetry TypeHELICAL
Map-Model Fitting and Refinement
Id1 (3HQD, 1JFF)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement TargetCross-correlation coefficient
Overall B Value
Fitting Procedure
DetailsMETHOD--RIGID BODY (1JFF). RIGID BODY AND FLEXIBLE FITTING (3HQD) REFINEMENT PROTOCOL--X-RAY
Data Acquisition
Detector TypeKODAK SO-163 FILM
Electron Dose (electrons/Å**2)18
Imaging Experiment1
Date of Experiment2011-01-10
Temperature (Kelvin)90
Microscope ModelFEI TECNAI F20
Minimum Defocus (nm)700
Maximum Defocus (nm)2200
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification50000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGFlex-EM
MODEL FITTINGUCSF Chimera
RECONSTRUCTIONFREALIGN
RECONSTRUCTIONSPIDER
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
FREALIGN