9I51 image
Deposition Date 2025-01-27
Release Date 2025-07-30
Last Version Date 2025-08-13
Entry Detail
PDB ID:
9I51
Keywords:
HYDROLASE
Title:
Crystal structure of the SARS-CoV-2 helicase NSP13 in complex with ADP
Biological Source:
Source Organism:
Severe acute respiratory syndrome coronavirus 2 (Taxon ID: 2697049)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.82 Å
R-Value Free:
0.20
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 1
9I51 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:SARS-CoV-2 helicase NSP13
Gene (Uniprot):rep
Chain IDs:A, B
Chain Length:603
Number of Molecules:2
Biological Source:Severe acute respiratory syndrome coronavirus 2
UniProt ID:P0DTD1 Pfam ID:PF20632, PF20633, PF20631, PF13087 EC:2.7.7.48
Ligand Molecules
ADP
MPO
PO4
ZN
Primary Citation
Nucleotide-bound crystal structures of the SARS-CoV-2 helicase NSP13.
Acta Crystallogr.,Sect.F 81 338 347 (2025)
PMID: 40638074 DOI: 10.1107/S2053230X25005266

Abstact

Nucleotide-bound crystal structures of SARS-CoV-2 NSP13 in ADP- and ATP-bound states were resolved to 1.8 and 1.9 Å, respectively. The ADP-bound model captures a state immediately following ATP hydrolysis, with both ADP and orthophosphate still present in the active site. Further comparative analysis revealed that crystal packing influences NSP13 by stabilizing the nucleotide-binding site, underscoring the importance of accounting for these effects in structure-based drug design targeting NSP13.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
9I51