6YHU image
Deposition Date 2020-03-31
Release Date 2020-04-29
Last Version Date 2024-11-06
Entry Detail
PDB ID:
6YHU
Keywords:
VIRAL PROTEIN
Title:
Crystal structure of the nsp7-nsp8 complex of SARS-CoV-2
Biological Source:
Source Organism:
Severe acute respiratory syndrome coronavirus 2 (Taxon ID: 2697049)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.00 Å
R-Value Free:
0.23
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 1 21 1
6YHU validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Replicase polyprotein 1a
Chain IDs:A, C
Chain Length:71
Number of Molecules:2
Biological Source:Severe acute respiratory syndrome coronavirus 2
UniProt ID:P0DTD1 Pfam ID:PF08716, PF08717
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Replicase polyprotein 1a
Chain IDs:B, D
Chain Length:117
Number of Molecules:2
Biological Source:Severe acute respiratory syndrome coronavirus 2
UniProt ID:P0DTD1 Pfam ID:PF08716, PF08717
Primary Citation
Structural analysis of the putative SARS-CoV-2 primase complex.
J.Struct.Biol. 211 107548 107548 (2020)
PMID: 32535228 DOI: 10.1016/j.jsb.2020.107548

Abstact

We report the crystal structure of the SARS-CoV-2 putative primase composed of the nsp7 and nsp8 proteins. We observed a dimer of dimers (2:2 nsp7-nsp8) in the crystallographic asymmetric unit. The structure revealed a fold with a helical core of the heterotetramer formed by both nsp7 and nsp8 that is flanked with two symmetry-related nsp8 β-sheet subdomains. It was also revealed that two hydrophobic interfaces one of approx. 1340 Å2 connects the nsp7 to nsp8 and a second one of approx. 950 Å2 connects the dimers and form the observed heterotetramer. Interestingly, analysis of the surface electrostatic potential revealed a putative RNA binding site that is formed only within the heterotetramer.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
6YHU
Feedback Form
Name
Email
Institute
Feedback