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E. coli RNA polymerase holoenzyme (sigma70) and E. coli catabolite activator protein (CAP) bound to 98-mer DNA containing the lac promoter and
engineered open transcription bubble
Sample Components
Catabolite Activator Protein
lac(ICAP)UP-UV5-bubble
RNA polymerase holoenzyme (sigma70)
Specimen Preparation
Sample Aggregation State
PARTICLE
Staining Type
NEGATIVE
Staining Material
Uranyl Formate
Staining Details
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
14097
Reported Resolution (Å)
19.8
Resolution Method
FSC 0.5 CUT-OFF
Other Details
EMAN interleaved with SPIDER correspondence analysis ( Details about the particle: 32816 particles were automatically selected by the Appion DoGpicker ...
EMAN interleaved with SPIDER correspondence analysis ( Details about the particle: 32816 particles were automatically selected by the Appion DoGpicker initially )
Refinement Type
Symmetry Type
POINT
Point Symmetry
C1
Map-Model Fitting and Refinement
Id
1 (1LB2, 1BDF, 2AUK, 1SIG, 3DXJ)
Refinement Space
REAL
Refinement Protocol
FLEXIBLE FIT
Refinement Target
map-derived potential energy
Overall B Value
Fitting Procedure
Details
REFINEMENT PROTOCOL--rigid body, Yup.scx simulated annealing DETAILS--A
complete ternary complex model was generated using multiple PDB entries, with ...
REFINEMENT PROTOCOL--rigid body, Yup.scx simulated annealing DETAILS--A
complete ternary complex model was generated using multiple PDB entries, with a
homology modelling step for RNAP. The model was regularized with PHENIX and the
refined against the EM map with Yup.scx using default parameters.