Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
'4-7-Internal Loop pdb2b661A.n2610-2636
Source: [PDB-id:chain] 2b66:A (&rarr PDB)
Source: Information 50S RIBOSOMAL SUBUNIT FROM A CRYSTAL STRUCTURE OF RELEASE FACTOR RF1, TRNAS AND MRNA BOUND TO THE RIBOSOME. THIS FILE CONTAINS THE 50S SUBUNIT FROM A CRYSTAL STRUCTURE OF RELEASE FACTOR RF1, TRNAS AND MRNA BOUND TO THE RIBOSOME AND IS DESCRIBED IN REMARK 400
Source: Compound 23S RIBOSOMAL RNA
Source: Resolution 5.90 ANGSTROMS.
Position (2613, 2633), (2618, 2625)
Primary structure ('_': anchors) _UGUC_-_GGCAUAA_
Bases with unusual sugar puckers
(Standard: C3'-endo) 		4: C4'-exo, 7: C2'-exo, 9: C4'-exo, 12: C4'-exo, 15: C2'-exo
Bases with unusual glycosidic-bond configuration
(Standard: anti) 		12: syn, 14: syn
Tertiary structure: Stacked bases
# Position 1 Position 2 Stacking direction
1 3 4 ↑
2 3 11 →
3 7 8 ↑
4 9 10 ↑
5 10 11 ↑
6 11 15 ↑
Tertiary structure: Base-pairs
(anchor pairs)
# Position 1 Position 2 Edges Configuration Single?
1 1 2 Hoogsteen/O2' ?
2 1 15 Watson-Crick/Watson-Crick cis
3 3 10 Watson-Crick/Watson-Crick cis
4 4 5 Hoogsteen/Bifurcated cis y
5 5 8 Watson-Crick/Hoogsteen cis y
6 6 7 Watson-Crick/Watson-Crick cis y
7 13 14 O2'/C ?
Downloads Atom coordinates (PDB format)
Contact annotation (MC-Annotate format)
3D Structure Structure Graph
Structural Clusters