Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'4-5-Internal Loop pdb1c2wFB.n1716-1743
Source: [PDB-id:chain] 1c2w:B (&rarr PDB)
Source: Information 23S RRNA STRUCTURE FITTED TO A CRYO-ELECTRON MICROSCOPIC MAP AT 7.5 ANGSTROMS RESOLUTION
Source: Compound 23S RIBOSOMAL RNA
FLIPPED INTERNAL
Source: Resolution 7.50 ANGSTROMS.
Position (1718, 1741), (1724, 1736)
Primary structure ('_': anchors) _GGAG_-_GUGAG_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		None
Bases with unusual glycosidic-bond configuration
(Standard: anti) 		2: syn, 8: syn, 11: syn, 12: syn
Tertiary structure: Stacked bases
# Position 1 Position 2 Stacking direction
1 1 2 →
2 2 9 ↓
3 7 9 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 13 Watson-Crick/Watson-Crick cis
2 2 5 O2'/Hoogsteen cis
3 2 6 O2'/Watson-Crick ?
4 2 9 Watson-Crick/O2' ?
5 3 9 C/O2' ?
6 3 10 Bifurcated/O2' ?
7 4 10 O2'/Bifurcated ?
8 5 10 Watson-Crick/O2' ?
9 6 7 Watson-Crick/Watson-Crick cis y
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters