7N6I | pdb_00007n6i

ATP-bound TnsC-TniQ complex from ShCAST system

ELECTRON MICROSCOPY

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6V9P

Sample
ATP-bound TnsC-TniQ complex from ShCAST system

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details	Blot for 7 seconds before plunging

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	34546
Reported Resolution (Å)	3.9
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Map-Model Fitting and Refinement
Id	1 (6V9P)
Refinement Space
Refinement Protocol	RIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details	Homology model was built using the crystal structure of TniQ (PDB:6V9P) by GalaxyTBM server. This model is manually docked into the cryo-EM density using UCSF Chimera.

Data Acquisition
Detector Type	GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)	50

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TALOS ARCTICA
Minimum Defocus (nm)	1000
Maximum Defocus (nm)	2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2.7
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification	63000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
CTF CORRECTION	Warp	1.0.9
CTF CORRECTION	RELION	3.1
MODEL FITTING	UCSF Chimera
INITIAL EULER ASSIGNMENT	cryoSPARC	3.0
INITIAL EULER ASSIGNMENT	RELION	3.1
FINAL EULER ASSIGNMENT	RELION	3.1
RECONSTRUCTION	RELION	3.1

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION		648550	Neural net based particle picking