Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'4-5-Internal Loop pdb2hguFA.n224-251
Source: [PDB-id:chain] 2hgu:A (&rarr PDB)
Source: Information 70S T.TH. RIBOSOME FUNCTIONAL COMPLEX WITH MRNA AND E- AND P-SITE TRNAS AT 4.5A. THIS ENTRY 2HGU CONTAINS 50S RIBOSOMAL SUBUNIT. THE 30S RIBOSOMAL SUBUNIT CAN BE FOUND IN PDB ENTRY 2HGR.
Source: Compound 23S RRNA
FLIPPED INTERNAL
Source: Resolution 4.51 ANGSTROMS.
Position (228, 247), (234, 242)
Primary structure ('_': anchors) _GAAA_-_GAGUA_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		1: C2'-exo, 7: C2'-exo, 13: 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 3 4 ↑
4 4 8 →
5 5 6 ↑
6 5 10 &larr
7 8 9 ↑
8 9 11 →
9 12 13 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 13 Watson-Crick/Watson-Crick cis
2 2 12 Bifurcated/O2' ?
3 3 11 Hoogsteen/Hoogsteen trans
4 3 12 Bifurcated/O2' ?
5 4 9 Hoogsteen/Watson-Crick trans
6 4 10 O2'/Bifurcated ?
7 5 8 O2'/Bifurcated ?
8 5 10 Bifurcated/O2' ?
9 6 7 Watson-Crick/Watson-Crick cis
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters