7CKB | pdb_00007ckb

Simplified Alpha-Carboxysome, T=3

ELECTRON MICROSCOPY

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2RCF
experimental model	PDB	2EWH

Refinement

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.7995
f_angle_d	0.8598
f_chiral_restr	0.0493
f_bond_d	0.0076
f_plane_restr	0.0051

Sample
Simplified Alpha-Carboxysome, T=3

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	LEICA EM GP
Cryogen Name	ETHANE
Sample Vitrification Details	Blot for 1.0 - 2.5 seconds

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	11468
Reported Resolution (Å)	3.24
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT

Map-Model Fitting and Refinement
Id	1 (2RCF, 2EWH)
Refinement Space	REAL
Refinement Protocol	FLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å**2)	64.3

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)	1500
Maximum Defocus (nm)	1900
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	RELION	3.0.7
CTF CORRECTION	CTFFIND	4.1
MODEL FITTING	UCSF Chimera	1.14
CLASSIFICATION	RELION	3.0.7
RECONSTRUCTION	RELION	3.0.7
MODEL REFINEMENT	PHENIX	1.18.2-3874

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION		94129