ISDA

Deposition Date 2020-03-01

Release Date 2020-03-18

Last Version Date 2024-10-23

Entry Detail

PDB ID:

6Y7M

Keywords:

VIRAL PROTEIN

Title:

Crystal structure of the complex resulting from the reaction between the SARS-CoV main protease and tert-butyl (1-((S)-3-cyclohexyl-1-(((S)-4-(cyclopropylamino)-3,4-dioxo-1-((S)-2-oxopyrrolidin-3-yl)butan-2-yl)amino)-1-oxopropan-2-yl)-2-oxo-1,2-dihydropyridin-3-yl)carbamate

Biological Source:

Source Organism:

Severe acute respiratory syndrome coronavirus (Taxon ID: 694009)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.25

R-Value Work:

0.20

Space Group:

C 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:3C-like proteinase
Gene (Uniprot):1a
Chain IDs:A (auth: AAA)
Chain Length:306
Number of Molecules:1
Biological Source:Severe acute respiratory syndrome coronavirus

UniProt ID:P0C6U8 Pfam ID:PF05409 EC:3.4.22.69

Ligand Molecules

DMS

OEW

Primary Citation

Crystal structure of SARS-CoV-2 main protease provides a basis for design of improved alpha-ketoamide inhibitors.

Zhang, L, Lin, D, Sun, X, Curth, U, Drosten, C, Sauerhering, L, Becker, S, Rox, K, Hilgenfeld, R.Show

Science 368 409 412 (2020)

PMID: 32198291 DOI: 10.1126/science.abb3405

Abstact

The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) is a global health emergency. An attractive drug target among coronaviruses is the main protease (Mpro, also called 3CLpro) because of its essential role in processing the polyproteins that are translated from the viral RNA. We report the x-ray structures of the unliganded SARS-CoV-2 Mpro and its complex with an α-ketoamide inhibitor. This was derived from a previously designed inhibitor but with the P3-P2 amide bond incorporated into a pyridone ring to enhance the half-life of the compound in plasma. On the basis of the unliganded structure, we developed the lead compound into a potent inhibitor of the SARS-CoV-2 Mpro The pharmacokinetic characterization of the optimized inhibitor reveals a pronounced lung tropism and suitability for administration by the inhalative route.

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Primary Citation of related structures