9HPN | pdb_00009hpn

Corynebacterium glutamicum PS2 S-layer

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	3.6947
f_angle_d	0.4245
f_chiral_restr	0.0337
f_plane_restr	0.0029
f_bond_d	0.0021

Sample
Corynebacterium glutamicum PS2 S-layer

Specimen Preparation
Sample Aggregation State	2D ARRAY
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details	3.5 uL of resuspended sample was applied to a freshly glow discharged Quantifoil R2/2 Cu/Rh 200 mesh grid and plunge-frozen into liquid ethane maintained at -178 C, using Vitrobot Mark IV after a wait time of 40 seconds, with -5 blot force and 2.5 seconds blot time.

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	50974
Reported Resolution (Å)	3.06
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C6

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

Data Acquisition
Detector Type	FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)	50

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	TFS KRIOS
Minimum Defocus (nm)	1600
Maximum Defocus (nm)	2200
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	105000
Calibrated Magnification	105000
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419
IMAGE ACQUISITION	EPU	3.7.1
CTF CORRECTION	cryoSPARC	4.5.3
FINAL EULER ASSIGNMENT	cryoSPARC	4.5.3
CLASSIFICATION	cryoSPARC	4.5.3
RECONSTRUCTION	cryoSPARC	4.5.3

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