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Cryo-EM structure of the Tc toxin TcdA1 in its pore state (obtained by flexible fitting)
ELECTRON MICROSCOPY
Sample
Structure of TcdA1 in pore state, determined in lipid nanodiscs
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
GATAN CRYOPLUNGE 3
Cryogen Name
ETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
13000
Reported Resolution (Å)
3.46
Resolution Method
FSC 0.143 CUT-OFF
Other Details
The density was filtered to its local resolution using localfilt (SPARX) and Remap. Although the density map has an average resolution of 3.46 A, the ...
The density was filtered to its local resolution using localfilt (SPARX) and Remap. Although the density map has an average resolution of 3.46 A, the present rough model was obtained by flexible fitting within local densities of <9 A resolution.
Refinement Type
Symmetry Type
POINT
Point Symmetry
C5
Map-Model Fitting and Refinement
Id
1
Refinement Space
Refinement Protocol
FLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Pseudoatomic model was obtained by flexible fitting after initial rigid body fitting of individual domains in Chimera.