Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'9-9-Internal Loop pdb1i97FA.n234-280
Source: [PDB-id:chain] 1i97:A (&rarr PDB)
Source: Information CRYSTAL STRUCTURE OF THE 30S RIBOSOMAL SUBUNIT FROM THERMUS THERMOPHILUS IN COMPLEX WITH TETRACYCLINE
Source: Compound 16S RRNA
FLIPPED INTERNAL
Source: Resolution 4.50 ANGSTROMS.
Position (236, 278), (246, 268)
Primary structure ('_': anchors) _GGCGACGAC_-_AUCAGCUAG_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		5: C4'-exo, 6: C2'-exo, 10: C2'-exo, 11: C4'-exo, 12: C4'-exo, 18: C4'-exo, 19: C2'-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 3 18 →
4 8 9 ↑
5 9 10 ↑
6 16 17 ↑
7 18 21 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 22 Watson-Crick/Watson-Crick cis y
2 2 19 Watson-Crick/Watson-Crick cis y
3 3 4 C/O2' ?
4 3 17 Watson-Crick/O2' ?
5 4 18 Sugar/Hoogsteen trans y
6 7 18 O2'/Bifurcated ?
7 9 15 Bifurcated/O2' ?
8 10 12 Bifurcated/O2' ?
9 10 15 Watson-Crick/Watson-Crick cis
10 11 12 Watson-Crick/Watson-Crick cis
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters