Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'4-4-Internal Loop pdb1fka1A.n755-769
Source: [PDB-id:chain] 1fka:A (&rarr PDB)
Source: Information STRUCTURE OF FUNCTIONALLY ACTIVATED SMALL RIBOSOMAL SUBUNIT AT 3.3 A RESOLUTION
Source: Compound 16S RIBOSOMAL RNA
Source: Resolution 3.30 ANGSTROMS.
Position (750, 774), (755, 769)
Primary structure ('_': anchors) _AAAC_-_GGUA_
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 12 →
3 4 5 ↑
4 4 11 →
5 5 6 ↑
6 7 8 ↑
7 8 9 ↑
8 10 11 ↑
9 11 12 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 12 Watson-Crick/Watson-Crick cis
2 2 10 O2'/Bifurcated ?
3 3 9 Watson-Crick/O2' ?
4 6 7 Watson-Crick/Watson-Crick cis
5 11 12 Hoogsteen/O2' ?
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters