Comparison of RNA conformers with very small RNA crystal structures
• Clustered the conformers• Compared with dinucleoside phosphates
– High resolution– With and without ligands
RMSD Clustering
• Hierarchical clustering using ‘complete linkages’ • Cluster data set included:
– 38 model dinucleotides representing the diversity of RNA conformation space (earlier version)
– 7 high resolution dinucleoside phosphate crystal structures
• Clustered families based on backbone RMSD
RMSD Cluster Resultsdinucleotide backbone
ARNADRB006CGPF
URB003ApA - Ca4
DRB003ApU - 9AA
URB008UPA1
URB008UPA2
Cluster 2
Cluster 1
RMSD Cluster Resultssuite backbone
ARNA
DRB006CGPF
URB003ApA - Ca4
DRB003ApU - 9AA
URB008UPA1
URB008UPA2
RMSD Cluster Results backbone plus chi
ARNA
DRB006CGPF URB003
ApA - Ca4
DRB003ApU - 9AAURB008
UPA1
URB008UPA2
myRNAdb
• MySQL relational database of ~1000 RNA containing structures in NDB/PDB
• Uses core schema based on mmCIF/PDB Exchange Dictionary
• Includes base-pair and base-pair step geometries and RNA SCOR annotation
• Warehouse style tables for mining nucleotide, dinucleotide and trinucleotide features.
• Python tools for loading, access and analysis