Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'4-4-Internal Loop pdb1i971A.n766-780
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 (761, 785), (766, 780)
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 3 11 →
3 4 10 →
4 7 8 ↑
5 8 9 ↑
6 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 2 11 Hoogsteen/Sugar trans y
4 3 10 Watson-Crick/Hoogsteen trans
5 4 9 Sugar/Hoogsteen trans
6 6 7 Watson-Crick/Watson-Crick cis y
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters