› 4b5r

X-ray diffraction
2.95Å resolution

SAM-I riboswitch bearing the H. marismortui K-t-7

Released:
DOI: 10.2210/pdb4b5r/pdb
PDB entry 4b5r coloured by chain, front view.
PDB entry 4b5r coloured by chain, side view.
PDB entry 4b5r coloured by chain, top view.
Source organism: Caldanaerobacter subterraneus subsp. tengcongensis
Primary publication:
The plasticity of a structural motif in RNA: structural polymorphism of a kink turn as a function of its environment.
Daldrop P, Lilley DM
RNA 19 357-64 (2013)
PMID: 23325110

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-195850 (preferred)
Entry contents:
1 distinct RNA molecule
Macromolecule:
SAM-I RIBOSWITCH Chain: A
Molecule details ›
Chain: A
Length: 94 nucleotides
Theoretical weight: 30.61 KDa
Source organism: Caldanaerobacter subterraneus subsp. tengcongensis
Expression system: Not provided
Sequence domains: SAM riboswitch (S box leader)

Ligands and Environments

3 bound ligands:
Ligand SAM 1 x SAM
Ligand BA 12 x BA
Ligand K 7 x K
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P43212
Unit cell:
a: 58.72Å b: 58.72Å c: 154.71Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.221 0.219 0.252
Expression system: Not provided

Quick links

Citations

4 review citations

The Kink Turn, a Key Architectural Element in RNA Structure.
Huang et al. (2016)
3 more

8 mentions without citation

Using RNA Sequence and Structure for the Prediction of Riboswitch Aptamer: A Comprehensive Review of Available Software and Tools.
Antunes et al. (2017)
7 more