9WHX | pdb_00009whx

Cryo-EM structure of the IS621 recombinase in complex with bridge RNA, left-half DNA, and right-half DNA in the pre-strand exchange state


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
s_dihedral_angle_6_deg14.4442
s_dihedral_angle_3_deg12.9302
s_dihedral_angle_1_deg5.6695
s_angle_nonh_deg1.6592
s_dihedral_angle_2_deg1.2899
s_nbtor0.2157
s_nbd0.2091
s_hbond_nbd0.1568
s_chiral_restr0.0623
s_planes0.0079
RMS Deviations
KeyRefinement Restraint Deviation
s_dihedral_angle_6_deg14.4442
s_dihedral_angle_3_deg12.9302
s_dihedral_angle_1_deg5.6695
s_angle_nonh_deg1.6592
s_dihedral_angle_2_deg1.2899
s_nbtor0.2157
s_nbd0.2091
s_hbond_nbd0.1568
s_chiral_restr0.0623
s_planes0.0079
s_bond_nonh_d0.0064
Sample
Cryo-EM structure of the IS621 recombinase in complex with bridge RNA, left-half DNA, and right-half DNA in the pre-strand exchange state
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles558374
Reported Resolution (Å)2.5
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2000
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
PARTICLE SELECTIONcryoSPARC
CTF CORRECTIONcryoSPARC
MODEL REFINEMENTServalcat
INITIAL EULER ASSIGNMENTcryoSPARC
FINAL EULER ASSIGNMENTcryoSPARC
CLASSIFICATIONcryoSPARC
RECONSTRUCTIONcryoSPARC
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION