Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'3-3-Internal Loop pdb1q81FA.n2592-2618
Source: [PDB-id:chain] 1q81:A (&rarr PDB)
Source: Information CRYSTAL STRUCTURE OF MINIHELIX WITH 3' PUROMYCIN BOUND TO A- SITE OF THE 50S RIBOSOMAL SUBUNIT.
Source: Compound 23S RIBOSOMAL RNA
FLIPPED INTERNAL
Source: Resolution 2.95 ANGSTROMS.
Position (2588, 2622), (2592, 2618)
Primary structure ('_': anchors) _GUA_-_GUA_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		None
Bases with unusual glycosidic-bond configuration
(Standard: anti) 		None
Tertiary structure: Stacked bases
# Position 1 Position 2 Stacking direction
1 1 2 ↑
2 2 3 ↑
3 3 7 →
4 4 5 ↑
5 4 9 &larr
6 6 7 ↑
7 9 10 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 10 Watson-Crick/Watson-Crick cis
2 2 9 Hoogsteen/Sugar trans
3 3 9 O2'/Watson-Crick ?
4 4 7 Sugar/Hoogsteen trans y
5 4 8 Bifurcated/O2' ?
6 5 6 Watson-Crick/Watson-Crick cis
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters