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Cryo-EM structure of human CMG helicase stalled at G4-containing DNA template
ELECTRON MICROSCOPY
Starting Model(s)
Initial Refinement Model(s)
Type
Source
Accession Code
Details
in silico model
Other
Sample
Human CMG, G4 stall state
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
30 second wait time after sample application; 30 second blot time, blot force 0
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
187345
Reported Resolution (Å)
2.6
Resolution Method
FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type
POINT
Point Symmetry
C1
Map-Model Fitting and Refinement
Id
1
Refinement Space
REAL
Refinement Protocol
AB INITIO MODEL
Refinement Target
Overall B Value
49.99
Fitting Procedure
Details
Initial fitting was performed de novo by ModelAngelo, then iteratively improved with ChimeraX/ISOLDE, Coot, and Phenix real-space refinement algorithm ...
Initial fitting was performed de novo by ModelAngelo, then iteratively improved with ChimeraX/ISOLDE, Coot, and Phenix real-space refinement algorithms.