7ZPK

Mammalian Dicer in the "pre-dicing state" with pre-miR-15a substrate and TARBP2 subunit


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d13.019
f_angle_d0.848
f_chiral_restr0.053
f_plane_restr0.015
f_bond_d0.004
Sample
Pre-dicing state of mouse somatic dicer with pre-mir-15a and TARBP2
Sample Components
Pre-dicing state of mouse somatic dicer with TARBP2
Pre-mir-15a
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsDescribed in STAR methods
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles437518
Reported Resolution (Å)3.81
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (7ZPJ, 7ZPJ, 7ZPJ)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement TargetCorrelation coefficient
Overall B Value189.2
Fitting Procedure
DetailsInitial model used from PDB ID:7ZPJ TARBP2 dsRBD domain 1: initial model from PDB ID:7ZPJ TARBP2 dsRBD domains 2,3: manually fitted into EM map accor ...Initial model used from PDB ID:7ZPJ TARBP2 dsRBD domain 1: initial model from PDB ID:7ZPJ TARBP2 dsRBD domains 2,3: manually fitted into EM map according to map density
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)60.198
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)3500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
CTF CORRECTIONcryoSPARCv3.3.1
MODEL FITTINGUCSF Chimera1.15
CLASSIFICATIONcryoSPARCv3.3.1
RECONSTRUCTIONcryoSPARCv3.3.1
MODEL REFINEMENTISOLDE1.1.0
MODEL REFINEMENTPHENIX1.19.2-4158
MODEL REFINEMENTCoot0.9.6
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION2219694