1L9Y

FEZ-1-Y228A, A Mutant of the Metallo-beta-lactamase from Legionella gormanii

Summary for 1L9Y

• Entry DOI: 10.2210/pdb1l9y/pdb
• Related: 1JT1 1K07
• Descriptor: FEZ-1 b-lactamase, ZINC ION, CHLORIDE ION, ... (6 entities in total)
• Functional Keywords: monomer with alpha-beta/beta-alpha fold, two monomers per assymmetric unit, hydrolase
• Biological source: Fluoribacter gormanii
• Total number of polymer chains: 2
• Total formula weight: 59822.10

Authors

Garcia-Saez, I.,Mercuri, P.S.,Galleni, M.,Dideberg, O. (deposition date: 2002-03-27, release date: 2003-07-01, Last modification date: 2024-11-06)

Primary citation

Garcia-Saez, I.,Mercuri, P.S.,Papamicael, C.,Kahn, R.,Frre, J.M.,Galleni, M.,Rossolini, G.M.,Dideberg, O.
Three-dimensional Structure of FEZ-1, a Monomeric Subclass B3 Metallo-beta-lactamase from Fluoribacter gormanii, in Native Form and in Complex with -Captopril
J.Mol.Biol., 325:651-660, 2003

PubMed Abstract: The beta-lactamases are involved in bacterial resistance to penicillin and related compounds. Members of the metallo-enzyme class are now found in many pathogenic bacteria and are thus becoming of major clinical importance. The structures of the Zn-beta-lactamase from Fluoribacter gormanii (FEZ-1) in the native and in the complex form are reported here. FEZ-1 is a monomeric enzyme, which possesses two zinc-binding sites. These structures are discussed in comparison with those of the tetrameric L1 enzyme produced by Stenotrophomonas maltophilia. From this analysis, amino acids involved in the oligomerization of L1 are clearly identified. Despite the similarity in fold, the active site of FEZ-1 was found to be significantly different. Two residues, which were previously implicated in function, are not present in L1 or in FEZ-1. The broad-spectrum substrate profile of Zn-beta-lactamases arises from the rather wide active-site cleft, where various beta-lactam compounds can be accommodated.

PubMed: 12507470
DOI: 10.1016/S0022-2836(02)01271-8

Experimental method

X-RAY DIFFRACTION (2.01 Å)