Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'9-9-Internal Loop pdb1i971A.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
Source: Resolution 4.50 ANGSTROMS.
Position (236, 278), (246, 268)
Primary structure ('_': anchors) _AUCAGCUAG_-_GGCGACGAC_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		4: C2'-exo, 5: C4'-exo, 11: C4'-exo, 12: C4'-exo, 13: C2'-exo, 17: C2'-exo, 18: C4'-exo
Bases with unusual glycosidic-bond configuration
(Standard: anti) 		None
Tertiary structure: Stacked bases
# Position 1 Position 2 Stacking direction
1 2 5 ↑
2 5 20 →
3 6 7 ↑
4 13 14 ↑
5 14 15 ↑
6 20 21 ↑
7 21 22 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 22 Watson-Crick/Watson-Crick cis y
2 4 21 Watson-Crick/Watson-Crick cis y
3 5 16 O2'/Bifurcated ?
4 5 19 Sugar/Hoogsteen trans y
5 6 20 Watson-Crick/O2' ?
6 8 13 Watson-Crick/Watson-Crick cis
7 8 14 Bifurcated/O2' ?
8 11 12 Watson-Crick/Watson-Crick cis
9 11 13 Bifurcated/O2' ?
10 19 20 C/O2' ?
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters