S. cerevisiae spliceosomal post-catalytic P complex
ELECTRON MICROSCOPY
Sample
Spliceosomal P complex
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
Cryogen Name
ETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
212219
Reported Resolution (Å)
3.3
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
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
The author states the following for the pre-mRNA model building: For regions in the intron or exon where no clear sequence preferences were observed ( ...
The author states the following for the pre-mRNA model building: For regions in the intron or exon where no clear sequence preferences were observed (Spingola et al., PMID 10024174), U, A, U, and A-U are used to represent a generic nucleotide, purine, pyrimidine, and standard Watson-Crick basepair, respectively, based on the EM density. Nucleotides -7 to +7 in the exon are modeled mostly as the preferred nucleotides in each position (Spingola et al. PMID 10024174) unless the density suggests otherwise. Some nucleotides in the intron seem to form basepairs with defined U2 or U6 snRNA sequence based on EM densities, and are modeled as complementary nucleotides to the corresponding U2 or U6 sequence unless the density suggests otherwise.
