7OS2

Cryo-EM structure of Brr2 in complex with Jab1/MPN and C9ORF78


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.0825
f_angle_d0.5521
f_chiral_restr0.044
f_bond_d0.0054
f_plane_restr0.0043
Sample
Trimeric complex of Brr2, the Jab1/MPN domain of Prp8 and a N-terminal fragment of C9ORF78
Sample Components
U5 small nuclear ribonucleoprotein 200 kDa helicase (Brr2)
Telomere length and silencing protein 1 homolog (C9ORF78)
Pre-mRNA-processing-splicing factor 8 (Prp8) Jab1/MPN Domain
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles370493
Reported Resolution (Å)2.76
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (4KIT, 4KIT)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement TargetCC, R.m.s.d. Bonds / Angles
Overall B Value102
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)1800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification120000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU2.10
CTF CORRECTIONcryoSPARC3.1
MODEL FITTINGPHENIX1.19.2
MODEL REFINEMENTPHENIX1.19.2
INITIAL EULER ASSIGNMENTcryoSPARC3.1
FINAL EULER ASSIGNMENTcryoSPARC3.1
CLASSIFICATIONcryoSPARC3.1
RECONSTRUCTIONcryoSPARC3.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION936716