6F6W

Structure of Mycobacterium smegmatis RNA polymerase core


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg30.009
r_dihedral_angle_3_deg15.33
r_dihedral_angle_4_deg12.958
r_long_range_B_other10.219
r_long_range_B_refined10.218
r_dihedral_angle_1_deg6.15
r_mcangle_it5.352
r_mcangle_other5.352
r_scangle_other2.978
r_mcbond_it2.822
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg30.009
r_dihedral_angle_3_deg15.33
r_dihedral_angle_4_deg12.958
r_long_range_B_other10.219
r_long_range_B_refined10.218
r_dihedral_angle_1_deg6.15
r_mcangle_it5.352
r_mcangle_other5.352
r_scangle_other2.978
r_mcbond_it2.822
r_mcbond_other2.822
r_scbond_it1.311
r_scbond_other1.311
r_angle_refined_deg1.277
r_angle_other_deg1.063
r_chiral_restr0.044
r_bond_refined_d0.003
r_gen_planes_refined0.003
r_gen_planes_other0.002
r_bond_other_d
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
Mycobacterium smegmatis RNA polymerase Sigma-A holoenzyme
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles163000
Reported Resolution (Å)3.81
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement SpaceRECIPROCAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)52
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI POLARA 300
Minimum Defocus (nm)1500
Maximum Defocus (nm)3800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification78000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGCoot0.8.3
MODEL REFINEMENTREFMAC5.8
RECONSTRUCTIONRELION2.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING ONLY