6C23

Cryo-EM structure of PRC2 bound to cofactors AEBP2 and JARID2 in the Compact Active State

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.837
r_long_range_B_other	25.85
r_long_range_B_refined	25.848
r_scangle_other	14.221
r_mcangle_it	13.614
r_mcangle_other	13.613
r_dihedral_angle_4_deg	12.972
r_dihedral_angle_3_deg	12.912
r_dihedral_angle_1_deg	9.091
r_scbond_it	8.134
r_scbond_other	8.134
r_mcbond_it	7.928
r_mcbond_other	7.927
r_angle_refined_deg	1.497
r_angle_other_deg	1.008
r_chiral_restr	0.086
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
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
Ternary complex of PRC2 with cofactors AEBP2 and JARID2

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	145592
Reported Resolution (Å)	3.9
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Data Acquisition
Detector Type	GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)	60

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
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING ONLY