ISDA: 6I0R

Deposition Date 2018-10-26

Release Date 2019-03-20

Last Version Date 2024-01-24

Entry Detail

PDB ID:

6I0R

Keywords:

TRANSFERASE

Title:

Structure of quinolinate synthase in complex with 5-mercaptopyridine-2,3-dicarboxylic acid

Biological Source:

Source Organism:

Thermotoga maritima MSB8 (Taxon ID: 243274)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.10 Å

R-Value Free:

0.23

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 1 21 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Quinolinate synthase A
Gene (Uniprot):nadA
Mutagens:Y21F, K219R
Chain IDs:A
Chain Length:305
Number of Molecules:1
Biological Source:Thermotoga maritima MSB8

UniProt ID:Q9X1X7 Pfam ID:PF02445 EC:2.5.1.72

Ligand Molecules

H2S

QAT

Primary Citation

Design of specific inhibitors of quinolinate synthase based on [4Fe-4S] cluster coordination.

Saez Cabodevilla, J, Volbeda, A, Hamelin, O, Latour, J.M, Gigarel, O, Clemancey, M, Darnault, C, Reichmann, D, Amara, P, Fontecilla-Camps, J.C, Ollagnier de Choudens, S.Show

Chem.Commun.(Camb.) 55 3725 3728 (2019)

PMID: 30855610 DOI: 10.1039/c8cc09023h

Abstact

Quinolinate synthase (NadA) is a [4Fe-4S] cluster-containing enzyme involved in the formation of quinolinic acid, the precursor of the essential NAD coenzyme. Here, we report the synthesis and activity of derivatives of the first inhibitor of NadA. Using multidisciplinary approaches we have investigated their action mechanism and discovered additional specific inhibitors of this enzyme.

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Primary Citation of related structures