7MKY

SARS-CoV-2 frameshifting pseudoknot RNA

PDB DOI: https://doi.org/10.2210/pdb7MKY/pdb
NAKB: 7MKY

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

Deposited: 2021-04-27 Released: 2021-05-26
Deposition Author(s): Jones, C.P., Ferre-D'Amare, A.R.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.31 Å
R-Value Free: 0.188
R-Value Work: 0.154
R-Value Observed: 0.155

wwPDB Validation 3D Report Full Report

This is version 1.3 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: 21.95 kDa
Atom Count: 1,817
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 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NCO Query on NCO Download Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A]	B [auth A]	COBALT HEXAMMINE(III) Co H₁₈ N₆ DYLMFCCYOUSRTK-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]
MPD Query on MPD Download Ideal Coordinates CCD File SDF format, chain R [auth A] MOL2 format, chain R [auth A]	R [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C₆ H₁₄ O₂ SVTBMSDMJJWYQN-YFKPBYRVSA-N		Interactions Focus chain R [auth A] Interactions & Density Focus chain R [auth A]
K Query on K Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A]	C [auth A], D [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A]
MG Query on MG Download Ideal Coordinates CCD File 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] 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]	E [auth A] F [auth A] G [auth A] H [auth A] I [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]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions 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] Interactions & Density 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]
NA Query on NA Download Ideal Coordinates CCD File SDF format, chain N [auth A] SDF format, chain O [auth A] SDF format, chain P [auth A] SDF format, chain Q [auth A] MOL2 format, chain N [auth A] MOL2 format, chain O [auth A] MOL2 format, chain P [auth A] MOL2 format, chain Q [auth A]	N [auth A], O [auth A], P [auth A], Q [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A] Interactions & Density Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A]