ISDA: 6XPP

Deposition Date 2020-07-08

Release Date 2020-10-21

Last Version Date 2023-10-18

Entry Detail

PDB ID:

6XPP

Keywords:

LYASE

Title:

Crystal structure of itaconate modified Mycobaterium tuberculosis isocitrate lyase

Biological Source:

Source Organism:

Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (Taxon ID: 83332)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.55 Å

R-Value Free:

0.17

R-Value Work:

0.15

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Isocitrate lyase
Gene (Uniprot):icl
Chain IDs:A, B, C, D
Chain Length:428
Number of Molecules:4
Biological Source:Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)

UniProt ID:P9WKK7 Pfam ID:PF00463 EC:4.1.3.1

Ligand Molecules

ITN

Primary Citation

Itaconate is a covalent inhibitor of the Mycobacterium tuberculosis isocitrate lyase.

Kwai, B.X.C, Collins, A.J, Middleditch, M.J, Sperry, J, Bashiri, G, Leung, I.K.H.Show

Rsc Med Chem 12 57 61 (2021)

PMID: 34046597 DOI: 10.1039/d0md00301h

Abstact

Itaconate is a mammalian antimicrobial metabolite that inhibits the isocitrate lyases (ICLs) of Mycobacterium tuberculosis. Herein, we report that ICLs form a covalent adduct with itaconate through their catalytic cysteine residue. These results reveal atomic details of itaconate inhibition and provide insights into the catalytic mechanism of ICLs.

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Protein

Chemical

Disease

Primary Citation of related structures

Abstact

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