7LYJ

SARS-CoV-2 frameshifting pseudoknot RNA

PDB DOI: https://doi.org/10.2210/pdb7LYJ/pdb
NAKB: 7LYJ

Classification: RNA
Organism(s): Severe acute respiratory syndrome coronavirus 2
Mutation(s): No

Deposited: 2021-03-07 Released: 2021-05-26
Deposition Author(s): Jones, C.P., Ferre-D'Amare, A.R.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.11 Å
R-Value Free: 0.251
R-Value Work: 0.210
R-Value Observed: 0.214

wwPDB Validation 3D Report Full Report

This is version 1.2 of the entry. See complete history.

Literature

Crystal structure of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) frameshifting pseudoknot.

Jones, C.P., Ferre-D'Amare, A.R.

(2022) RNA 28: 239-249

PubMed: 34845084 Search on PubMedSearch on PubMed Central
DOI: https://doi.org/10.1261/rna.078825.121
Primary Citation of Related Structures:
7LYJ, 7MKY

PubMed Abstract:
SARS-CoV-2 produces two long viral protein precursors from one open reading frame using a highly conserved RNA pseudoknot that enhances programmed -1 ribosomal frameshifting. The 1.3 Å-resolution X-ray structure of the pseudoknot reveals three coaxially stacked helices buttressed by idiosyncratic base triples from loop residues. This structure represents a frameshift-stimulating state that must be deformed by the ribosome and exhibits base-triple-adjacent pockets that could be targeted by future small-molecule therapeutics.

Organizational Affiliation

Biochemistry and Biophysics Center, National Heart, Lung and Blood Institute, Bethesda, Maryland 20892, USA.

Macromolecule Content

Total Structure Weight: 22.25 kDa
Atom Count: 1,475
Modelled Residue Count: 66
Deposited Residue Count: 66
Unique nucleic acid chains: 1

Macromolecules

Find similar nucleic acids by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Length	Organism	Image
RNA (66-MER)	A	66	Severe acute respiratory syndrome coronavirus 2
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
IRI Query on IRI Download Ideal Coordinates CCD File SDF format, chain B [auth A] SDF format, chain C [auth A] MOL2 format, chain B [auth A] MOL2 format, chain C [auth A]	B [auth A], C [auth A]	IRIDIUM HEXAMMINE ION H₁₈ Ir N₆ CGMAOQLDNKCXGK-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Focus chain C [auth A] Interactions & Density Focus chain B [auth A] Focus chain C [auth A]
K Query on K Download Ideal Coordinates CCD File SDF format, chain P [auth A] SDF format, chain Q [auth A] MOL2 format, chain P [auth A] MOL2 format, chain Q [auth A]	P [auth A], Q [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N		Interactions Focus chain P [auth A] Focus chain Q [auth A] Interactions & Density Focus chain P [auth A] Focus chain Q [auth A]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain L [auth A] SDF format, chain M [auth A] SDF format, chain N [auth A] SDF format, chain O [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain L [auth A] MOL2 format, chain M [auth A] MOL2 format, chain N [auth A] MOL2 format, chain O [auth A]	D [auth A] E [auth A] F [auth A] G [auth A] H [auth A] D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], N [auth A], O [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A]