1QZ8 image
Deposition Date 2003-09-16
Release Date 2004-02-24
Last Version Date 2024-02-14
Entry Detail
PDB ID:
1QZ8
Title:
Crystal structure of SARS coronavirus NSP9
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.70 Å
R-Value Free:
0.28
R-Value Work:
0.24
R-Value Observed:
0.24
Space Group:
P 61 2 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:polyprotein 1ab
Chain IDs:A, B
Chain Length:113
Number of Molecules:2
Biological Source:SARS coronavirus
Primary Citation
The severe acute respiratory syndrome-coronavirus replicative protein nsp9 is a single-stranded RNA-binding subunit unique in the RNA virus world.
Proc.Natl.Acad.Sci.USA 101 3792 3796 (2004)
PMID: 15007178 DOI: 10.1073/pnas.0307877101

Abstact

The recently identified etiological agent of the severe acute respiratory syndrome (SARS) belongs to Coronaviridae (CoV), a family of viruses replicating by a poorly understood mechanism. Here, we report the crystal structure at 2.7-A resolution of nsp9, a hitherto uncharacterized subunit of the SARS-CoV replicative polyproteins. We show that SARS-CoV nsp9 is a single-stranded RNA-binding protein displaying a previously unreported, oligosaccharide/oligonucleotide fold-like fold. The presence of this type of protein has not been detected in the replicative complexes of RNA viruses, and its presence may reflect the unique and complex CoV viral replication/transcription machinery.

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