ISDA

Entry Detail

PDB ID:

2ZJ9

Keywords:

Title:

X-ray crystal structure of AmpC beta-Lactamase (AmpC(D)) from an Escherichia coli with a Tripeptide Deletion (Gly286 Ser287 Asp288) on the H10 Helix

Biological Source:

Source Organism:

Escherichia coli

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2008-02-29

Release Date:

2009-03-10

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.70 Å

R-Value Free:

0.20

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 1

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:AmpC
Chain IDs:A, B
Chain Length:355
Number of Molecules:2
Biological Source:Escherichia coli

UniProt ID:Q76DI4 Pfam ID:PF00144 EC:3.5.2.6

Ligand Molecules

IPA

Primary Citation

Structure of AmpC beta-lactamase (AmpCD) from an Escherichia coli clinical isolate with a tripeptide deletion (Gly286-Ser287-Asp288) in the H10 helix

Yamaguchi, Y, Sato, G, Yamagata, Y, Doi, Y, Wachino, J, Arakawa, Y, Matsuda, K, Kurosaki, H.Show

Acta Crystallogr.,Sect.F 65 540 543 (2009)

PMID: 19478427 DOI: 10.1107/S1744309109014249

Abstact

The X-ray crystal structure of AmpC beta-lactamase (AmpC(D)) with a tripeptide deletion (Gly286-Ser287-Asp288) produced by Escherichia coli HKY28, a ceftazidime-resistant strain, was determined at a resolution of 1.7 A. The structure of AmpC(D) suggests that the tripeptide deletion at positions 286-288 located in the H10 helix causes a structural change of the Asn289-Asn294 region from the alpha-helix present in the native AmpC beta-lactamase of E. coli to a loop structure, which results in a widening of the substrate-binding site.

Legend

Protein

Chemical

Disease

Primary Citation of related structures