ISDA

Deposition Date 2017-01-22

Release Date 2017-08-09

Last Version Date 2024-10-23

Entry Detail

PDB ID:

5MX9

Keywords:

TRANSFERASE

Title:

High resolution crystal structure of the MCR-2 catalytic domain

Biological Source:

Source Organism:

Escherichia coli (Taxon ID: 562)

Host Organism:

Escherichia coli BL21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.12 Å

R-Value Free:

0.14

R-Value Work:

0.13

R-Value Observed:

0.13

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Phosphatidylethanolamine transferase Mcr-2
Gene (Uniprot):mcr2
Chain IDs:A
Chain Length:324
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:A0A1C3NEV1 Pfam ID:PF00884 EC:2.7.8.43

Ligand Molecules

GOL

Primary Citation

1.12 angstrom resolution crystal structure of the catalytic domain of the plasmid-mediated colistin resistance determinant MCR-2.

Coates, K, Walsh, T.R, Spencer, J, Hinchliffe, P.Show

Acta Crystallogr F Struct Biol Commun 73 443 449 (2017)

PMID: 28777086 DOI: 10.1107/S2053230X17009669

Abstact

MCR-2 confers resistance to colistin, a `last-line' antibiotic against extensively resistant Gram-negative pathogens. It is a plasmid-encoded phosphoethanolamine transferase that is closely related to MCR-1. To understand the diversity in the MCR family, the 1.12 Å resolution crystal structure of the catalytic domain of MCR-2 was determined. Variable amino acids are located distant from both the di-zinc active site and the membrane-proximal face. The exceptionally high resolution will provide an accurate starting model for further mechanistic studies.

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Primary Citation of related structures