ISDA

Entry Detail

PDB ID:

6RRM

Keywords:

ANTIMICROBIAL PROTEIN

Title:

Crystal structure of LdtMt2 from Mycobacterium tuberculosis bound to Ebselen

Biological Source:

Source Organism:

Mycobacterium tuberculosis CDC1551

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2019-05-20

Release Date:

2019-08-14

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.64 Å

R-Value Free:

0.22

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:L,D-transpeptidase 2
Chain IDs:A, B
Chain Length:355
Number of Molecules:2
Biological Source:Mycobacterium tuberculosis CDC1551

UniProt ID:I6Y9J2 Pfam ID:PF17964, PF03734 EC:2.3.2.B14

Ligand Molecules

9JT

EDO

GOL

NH4

Primary Citation

Targeting the Mycobacterium tuberculosis transpeptidase LdtMt2with cysteine-reactive inhibitors including ebselen.

de Munnik, M, Lohans, C.T, Lang, P.A, Langley, G.W, Malla, T.R, Tumber, A, Schofield, C.J, Brem, J.Show

Chem.Commun.(Camb.) 55 10214 10217 (2019)

PMID: 31380528 DOI: 10.1039/c9cc04145a

Abstact

The l,d-transpeptidases (Ldts) are promising antibiotic targets for treating tuberculosis. We report screening of cysteine-reactive inhibitors against LdtMt2 from Mycobacterium tuberculosis. Structural studies on LdtMt2 with potent inhibitor ebselen reveal opening of the benzisoselenazolone ring by a nucleophilic cysteine, forming a complex involving extensive hydrophobic interactions with a substrate-binding loop.

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Primary Citation of related structures