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Streptomyces griseus Family 2B encapsulin shell with 2-methylisoborneol synthase cargo in 20 mM cAMP
ELECTRON MICROSCOPY
Starting Model(s)
Initial Refinement Model(s)
Type
Source
Accession Code
Details
in silico model
AlphaFold
Q54255
Sample
Streptomyces griseus Family 2B encapsulin shell with 2-methylisoborneol synthase cargo in 20 mM cAMP
Sample Components
2-Methylisoborneol synthase cargo protein
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
Blot force: 20
Blot time: 4 seconds
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
9170
Reported Resolution (Å)
2.93
Resolution Method
FSC 0.143 CUT-OFF
Other Details
Homogeneous refinement was performed with I symmetry, per-particle defocus optimization, per-group CTF parameterization, spherical aberration fit, tet ...
Homogeneous refinement was performed with I symmetry, per-particle defocus optimization, per-group CTF parameterization, spherical aberration fit, tetrafoil fit, anisotropic magnification fit, and Ewald sphere correction with a positive curvature sign.
Refinement Type
Symmetry Type
POINT
Point Symmetry
I
Map-Model Fitting and Refinement
Id
1
Refinement Space
REAL
Refinement Protocol
FLEXIBLE FIT
Refinement Target
cross-correlation coefficient
Overall B Value
92
Fitting Procedure
Details
An AlphaFold-generated model was fit into the map using ChimeraX v1.5. The model was then refined iteratively by alternating rounds of manual refineme ...
An AlphaFold-generated model was fit into the map using ChimeraX v1.5. The model was then refined iteratively by alternating rounds of manual refinement in Coot v8.9.1 and real-space refinements using PHENIX v1.20.1-4487.