ISDA

Deposition Date 2020-05-26

Release Date 2020-10-14

Last Version Date 2023-11-29

Entry Detail

PDB ID:

7C7O

Keywords:

ISOMERASE

Title:

Crystal structure of E.coli DNA gyrase B in complex with 6-fluoro-8-(methylamino)-2-oxo-1,2-dihydroquinoline derivative

Biological Source:

Source Organism:

Escherichia coli (Taxon ID: 562)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.22

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:DNA gyrase subunit B
Chain IDs:A
Chain Length:220
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P0AES6 Pfam ID:PF02518

Ligand Molecules

FKU

Primary Citation

Lead optimization of 8-(methylamino)-2-oxo-1,2-dihydroquinolines as bacterial type II topoisomerase inhibitors.

Ushiyama, F, Amada, H, Mihara, Y, Takeuchi, T, Tanaka-Yamamoto, N, Mima, M, Kamitani, M, Wada, R, Tamura, Y, Endo, M, Masuko, A, Takata, I, Hitaka, K, Sugiyama, H, Ohtake, N.Show

Bioorg.Med.Chem. 28 115776 115776 (2020)

PMID: 33032189 DOI: 10.1016/j.bmc.2020.115776

Abstact

The global increase in multidrug-resistant pathogens has caused severe problems in the treatment of infections. To overcome these difficulties, the advent of a new chemical class of antibacterial drug is eagerly desired. We aimed at creating novel antibacterial agents against bacterial type II topoisomerases, which are well-validated targets. TP0480066 (compound 32) has been identified by using structure-based optimization originated from lead compound 1, which was obtained as a result of our previous lead identification studies. The MIC90 values of TP0480066 against methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococci (VRE), and genotype penicillin-resistant Streptococcus pneumoniae (gPRSP) were 0.25, 0.015, and 0.06 μg/mL, respectively. Hence, TP0480066 can be regarded as a promising antibacterial drug candidate of this chemical class.

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