6EYD

Structure of Mycobacterium smegmatis RNA polymerase Sigma-A holoenzyme


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg29.54
r_dihedral_angle_3_deg15.699
r_dihedral_angle_4_deg13.142
r_dihedral_angle_1_deg6.318
r_long_range_B_refined4.065
r_long_range_B_other4.065
r_mcangle_it1.915
r_mcangle_other1.915
r_angle_refined_deg1.309
r_scangle_other1.189
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg29.54
r_dihedral_angle_3_deg15.699
r_dihedral_angle_4_deg13.142
r_dihedral_angle_1_deg6.318
r_long_range_B_refined4.065
r_long_range_B_other4.065
r_mcangle_it1.915
r_mcangle_other1.915
r_angle_refined_deg1.309
r_scangle_other1.189
r_angle_other_deg1.093
r_mcbond_it1.024
r_mcbond_other1.024
r_scbond_it0.559
r_scbond_other0.559
r_chiral_restr0.047
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 Particles42579
Reported Resolution (Å)4.22
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
RECONSTRUCTIONRELION2.1
MODEL REFINEMENTREFMAC5.8
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING ONLY