6BJC

TPX2_mini decorated GMPCPP-microtubule

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.097
r_dihedral_angle_3_deg	16.128
r_dihedral_angle_4_deg	12.079
r_dihedral_angle_1_deg	11.656
r_long_range_B_refined	3.785
r_long_range_B_other	3.785
r_mcangle_it	1.589
r_mcangle_other	1.589
r_angle_refined_deg	1.451
r_scangle_other	1.313
r_angle_other_deg	0.967
r_mcbond_it	0.857
r_mcbond_other	0.857
r_scbond_it	0.68
r_scbond_other	0.68
r_chiral_restr	0.082
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Sample
TPX2_mini decorated GMPCPP-microtubule
Sample Components
Tubulin
Targeting protein for Xklp2

Specimen Preparation
Sample Aggregation State	HELICAL ARRAY
Vitrification Instrument	FEI VITROBOT MARK II
Cryogen Name	ETHANE
Sample Vitrification Details	blot for 4 seconds before plunging

3D Reconstruction
Reconstruction Method	HELICAL
Number of Particles	85000
Reported Resolution (Å)	3.3
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	HELICAL
Axial Symmetry	C1
Axial Rise	9.03
Angular Rotation	-25.74

Map-Model Fitting and Refinement
Id	1
Refinement Space
Refinement Protocol	AB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)	27.6

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	0.01
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
PARTICLE SELECTION	Appion
IMAGE ACQUISITION	SerialEM
CTF CORRECTION	CTFFIND
MODEL FITTING	Coot
INITIAL EULER ASSIGNMENT	EMAN
FINAL EULER ASSIGNMENT	FREALIGN
RECONSTRUCTION	FREALIGN
MODEL REFINEMENT	REFMAC

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION