ISDA

Deposition Date 2006-05-08

Release Date 2007-05-08

Last Version Date 2024-10-23

Entry Detail

PDB ID:

2GX4

Keywords:

HYDROLASE

Title:

Crystal structure of SARS coronavirus 3CL protease inhibitor complex

Biological Source:

Source Organism:

SARS coronavirus (Taxon ID: 227859)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.93 Å

R-Value Free:

0.24

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
Chain IDs:A
Chain Length:306
Number of Molecules:1
Biological Source:SARS coronavirus

UniProt ID:P0C6X7 Pfam ID:PF05409

Ligand Molecules

NOL

Primary Citation

Synthesis, crystal structure, structure-activity relationships, and antiviral activity of a potent SARS coronavirus 3CL protease inhibitor.

Yang, S, Chen, S.J, Hsu, M.F, Wu, J.D, Tseng, C.T, Liu, Y.F, Chen, H.C, Kuo, C.W, Wu, C.S, Chang, L.W, Chen, W.C, Liao, S.Y, Chang, T.Y, Hung, H.H, Shr, H.L, Liu, C.Y, Huang, Y.A, Chang, L.Y, Hsu, J.C, Peters, C.J, Wang, A.H, Hsu, M.C.Show

J.Med.Chem. 49 4971 4980 (2006)

PMID: 16884309 DOI: 10.1021/jm0603926

Abstact

A potent SARS coronavirus (CoV) 3CL protease inhibitor (TG-0205221, Ki = 53 nM) has been developed. TG-0205221 showed remarkable activity against SARS CoV and human coronavirus (HCoV) 229E replications by reducing the viral titer by 4.7 log (at 5 microM) for SARS CoV and 5.2 log (at 1.25 microM) for HCoV 229E. The crystal structure of TG-0205221 (resolution = 1.93 A) has revealed a unique binding mode comprising a covalent bond, hydrogen bonds, and numerous hydrophobic interactions. Structural comparisons between TG-0205221 and a natural peptide substrate were also discussed. This information may be applied toward the design of other 3CL protease inhibitors.

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Primary Citation of related structures