Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'5-5-Internal Loop pdb2hguFA.n863-963
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 (869, 957), (875, 951)
Primary structure ('_': anchors) _GUGGA_-_GCUGA_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		1: C2'-exo, 4: C4'-exo, 5: C2'-exo, 9: C2'-exo, 10: C2'-exo, 11: C2'-exo, 12: C4'-exo, 13: C4'-exo, 14: C4'-exo
Bases with unusual glycosidic-bond configuration
(Standard: anti) 		5: syn, 11: syn
Tertiary structure: Stacked bases
# Position 1 Position 2 Stacking direction
1 1 2 ↑
2 2 3 ↑
3 5 12 &larr
4 6 7 ↑
5 8 9 ↑
6 13 14 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 14 Watson-Crick/Watson-Crick cis
2 3 4 O2'/C ?
3 3 5 Hoogsteen/O2' ?
4 3 10 Sugar/Watson-Crick cis y
5 3 12 Watson-Crick/Watson-Crick cis
6 4 10 Hoogsteen/Bifurcated trans y
7 5 10 Watson-Crick/Watson-Crick cis
8 6 10 Bifurcated/O2' ?
9 7 8 Watson-Crick/Watson-Crick cis
10 13 14 Hoogsteen/O2' ?
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters