Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'4-7-Internal Loop pdb1i941A.n670-681
Source: [PDB-id:chain] 1i94:A (&rarr PDB)
Source: Information CRYSTAL STRUCTURES OF THE SMALL RIBOSOMAL SUBUNIT WITH TETRACYCLINE, EDEINE AND IF3
Source: Compound 16S RRNA
Source: Resolution 3.20 ANGSTROMS.
Position (665, 689), (670, 681)
Primary structure ('_': anchors) _AGUA_-_GCAGAUA_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		5: C4'-exo
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 5 9 ↑
4 5 12 →
5 6 8 →
6 7 8 ↑
7 12 13 ↑
8 13 14 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 15 Watson-Crick/Watson-Crick cis
2 2 14 Watson-Crick/Watson-Crick cis y
3 3 11 O2'/Bifurcated ?
4 3 12 O2'/Watson-Crick ?
5 4 5 Hoogsteen/Watson-Crick cis y
6 4 11 O2'/Watson-Crick ?
7 5 8 O2'/Bifurcated ?
8 6 7 Watson-Crick/Watson-Crick cis
9 6 12 Watson-Crick/O2' ?
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters