8UZW | pdb_00008uzw

Selenocysteine synthase- SelA

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	6.529
f_angle_d	0.767
f_chiral_restr	0.041
f_bond_d	0.011
f_plane_restr	0.006

Sample
Bacterial Selenocysteine Synthase

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details	The sample was blotted for 2.5 seconds using a force of -10 and then swiftly plunged frozen into liquid ethane using the Vitrobot Mark IV - Thermo Fisher Scientific.

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	223410
Reported Resolution (Å)	2.69
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	D5

Map-Model Fitting and Refinement
Id	1
Refinement Space	REAL
Refinement Protocol	RIGID BODY FIT
Refinement Target
Overall B Value	95.2
Fitting Procedure
Details

Data Acquisition
Detector Type	FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)	45.4

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)	600
Maximum Defocus (nm)	2800
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	4.2.1
IMAGE ACQUISITION	EPU
CTF CORRECTION	cryoSPARC	4.2.1
MODEL FITTING	Coot	0.9.4
INITIAL EULER ASSIGNMENT	cryoSPARC	4.2.1
FINAL EULER ASSIGNMENT	cryoSPARC	4.2.1
CLASSIFICATION	cryoSPARC	4.2.1
RECONSTRUCTION	cryoSPARC	4.2.1
MODEL REFINEMENT	PHENIX	1.20.1-4487

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION		688602