9QB3 | pdb_00009qb3

Dimer structure of H/ACA RNP lobe of human telomerase


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 8OUE 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
r_long_range_B_refined62.078
r_long_range_B_other62.078
r_scangle_other39.876
r_mcangle_it36.357
r_mcangle_other36.357
r_scbond_it23.474
r_scbond_other23.473
r_mcbond_it22.158
r_mcbond_other22.157
r_dihedral_angle_3_deg11.645
RMS Deviations
KeyRefinement Restraint Deviation
r_long_range_B_refined62.078
r_long_range_B_other62.078
r_scangle_other39.876
r_mcangle_it36.357
r_mcangle_other36.357
r_scbond_it23.474
r_scbond_other23.473
r_mcbond_it22.158
r_mcbond_other22.157
r_dihedral_angle_3_deg11.645
r_dihedral_angle_1_deg6.329
r_dihedral_angle_2_deg3.654
r_angle_refined_deg1.29
r_angle_other_deg0.58
r_chiral_restr0.061
r_bond_refined_d0.005
r_gen_planes_refined0.005
r_gen_planes_other0.002
r_bond_other_d
r_dihedral_angle_4_deg
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
Dimer structure of human telomerase H/ACA RNA lobe
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles88419
Reported Resolution (Å)3.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC2
Map-Model Fitting and Refinement
Id1 (8OUE)
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)48
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)2400
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification81000
Calibrated Magnification45872
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION4.0
IMAGE ACQUISITIONEPU2.13.0.3175REL
CTF CORRECTIONCTFFIND4
MODEL FITTINGCoot0.9.8.1
MODEL FITTINGUCSF ChimeraX1.5
INITIAL EULER ASSIGNMENTRELION4.0
FINAL EULER ASSIGNMENTRELION5.0
CLASSIFICATIONRELION5.0
RECONSTRUCTIONRELION5.0
MODEL REFINEMENTREFMAC5.8
MODEL REFINEMENTServalcat0.4.70
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION1871285