9IU2 | pdb_00009iu2

Cryo-EM structure of the large serine recombinase Bxb1 in complex with attP and attB (GT/TT CDN) in the pre-strand exchange state

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
s_dihedral_angle_3_deg	13.4034173
s_dihedral_angle_6_deg	13.3181408
s_dihedral_angle_1_deg	6.47835926
s_dihedral_angle_2_deg	3.20579721
s_angle_nonh_deg	1.82605928
s_nbtor	0.198100526
s_nbd	0.168129186
s_chiral_restr	0.149629243
s_hbond_nbd	0.139181547
s_bond_nonh_d	0.00911188253
s_planes	0.00668812363

Sample
The large serine recombinase Bxb1 in complex with attP and attB (GT/TT CDN) in the pre-strand exchange state
Sample Components
attB
large serine recombinase
attP

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	266035
Reported Resolution (Å)	3.22
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Map-Model Fitting and Refinement
Id	1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)	51

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	TFS KRIOS
Minimum Defocus (nm)	800
Maximum Defocus (nm)	2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
PARTICLE SELECTION	cryoSPARC
CTF CORRECTION	cryoSPARC
MODEL FITTING	Coot
INITIAL EULER ASSIGNMENT	cryoSPARC
FINAL EULER ASSIGNMENT	cryoSPARC
CLASSIFICATION	cryoSPARC
RECONSTRUCTION	cryoSPARC
MODEL REFINEMENT	Servalcat

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION