ISDA

Deposition Date 2021-12-12

Release Date 2022-03-02

Last Version Date 2023-10-18

Entry Detail

PDB ID:

7T5K

Keywords:

OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR

Title:

E. coli dihydroorotate dehydrogenase bound to the inhibitor HQNO

Biological Source:

Source Organism:

Escherichia coli K-12 (Taxon ID: 83333)

Host Organism:

Escherichia coli B

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.25 Å

R-Value Free:

0.23

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

C 2 2 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Dihydroorotate dehydrogenase (quinone)
Gene (Uniprot):pyrD
Mutations:0
Chain IDs:A, B
Chain Length:368
Number of Molecules:2
Biological Source:Escherichia coli K-12

UniProt ID:P0A7E1 Pfam ID:PF01180 EC:1.3.5.2

Ligand Molecules

FMN

HQO

ORO

Primary Citation

Structural insights into inhibition of the drug target dihydroorotate dehydrogenase by bacterial hydroxyalkylquinolines.

Horwitz, S.M, Blue, T.C, Ambarian, J.A, Hoshino, S, Seyedsayamdost, M.R, Davis, K.M.Show

Rsc Chem Biol 3 420 425 (2022)

PMID: 35441142 DOI: 10.1039/d1cb00255d

Abstact

Hydroxyalkylquinolines (HAQs) are ubiquitious natural products but their interactions with associated protein targets remain elusive. We report X-ray crystal structures of two HAQs in complex with dihydroorotate dehydrogenase (DHODH). Our results reveal the structural basis of DHODH inhibition by HAQs and open the door to downstream structure-activity relationship studies.

Legend

Protein

Chemical

Disease

Primary Citation of related structures