skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Time-resolved β-lactam cleavage by L1 metallo-β-lactamase

Journal Article · · Nature Communications

Abstract Serial x-ray crystallography can uncover binding events, and subsequent chemical conversions occurring during enzymatic reaction. Here, we reveal the structure, binding and cleavage of moxalactam antibiotic bound to L1 metallo-β-lactamase (MBL) from Stenotrophomonas maltophilia . Using time-resolved serial synchrotron crystallography, we show the time course of β-lactam hydrolysis and determine ten snapshots (20, 40, 60, 80, 100, 150, 300, 500, 2000 and 4000 ms) at 2.20 Å resolution. The reaction is initiated by laser pulse releasing Zn 2+ ions from a UV-labile photocage. Two metal ions bind to the active site, followed by binding of moxalactam and the intact β-lactam ring is observed for 100 ms after photolysis. Cleavage of β-lactam is detected at 150 ms and the ligand is significantly displaced. The reaction product adjusts its conformation reaching steady state at 2000 ms corresponding to the relaxed state of the enzyme. Only small changes are observed in the positions of Zn 2+ ions and the active site residues. Mechanistic details captured here can be generalized to other MBLs.

Sponsoring Organization:
USDOE
OSTI ID:
1901479
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 13 Journal Issue: 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (54)

Watching proteins function with time-resolved x-ray crystallography journal August 2017
Fixed-target serial crystallography at the Structural Biology Center journal August 2022
Structural enzymology using X-ray free electron lasers journal December 2016
MOLPROBITY: structure validation and all-atom contact analysis for nucleic acids and their complexes journal July 2004
Overview of the CCP 4 suite and current developments journal March 2011
2′-O methylation of RNA cap in SARS-CoV-2 captured by serial crystallography journal May 2021
BioCARS: a synchrotron resource for time-resolved X-ray science journal May 2011
Familial Mutations and Zinc Stoichiometry Determine the Rate-Limiting Step of Nitrocefin Hydrolysis by Metallo-β-lactamase from Bacteroides fragilis journal January 2001
Direct Evidence That the Reaction Intermediate of Metallo-β-lactamase L1 Is Metal Bound journal December 2004
Femtosecond X-ray protein nanocrystallography journal February 2011
Antibiotic Resistance in Humans and Animals journal June 2016
Modeling the Transient Kinetics of the L1 Metallo-β-Lactamase journal January 2018
Enzyme intermediates captured “on the fly” by mix-and-inject serial crystallography journal May 2018
Metallo-β-lactamases (classification, activity, genetic organization, structure, zinc coordination) and their superfamily journal December 2007
Carbapenem resistance in Enterobacteriaceae: here is the storm! journal May 2012
Substrate-activated Zinc Binding of Metallo-β-lactamases: PHYSIOLOGICAL IMPORTANCE OF THE MONONUCLEAR ENZYMES journal April 2002
NDM-1, the ultimate promiscuous enzyme: substrate recognition and catalytic mechanism journal May 2013
Time-resolved serial crystallography captures high-resolution intermediates of photoactive yellow protein journal December 2014
Role of Cys221 and Asn116 in the zinc-binding sites of the Aeromonas hydrophila metallo-?-lactamase journal November 2003
Structure of Apo- and Monometalated Forms of NDM-1—A Highly Potent Carbapenem-Hydrolyzing Metallo-β-Lactamase journal September 2011
Antibiotic Recognition by Binuclear Metallo-β-Lactamases Revealed by X-ray Crystallography # journal October 2005
Moxalactam: The First of a New Class of β-Lactam Antibiotics journal November 1982
UCSF Chimera?A visualization system for exploratory research and analysis journal January 2004
Irreversible Inhibition of the Mycobacterium tuberculosis β-Lactamase by Clavulanate journal October 2007
Serial millisecond crystallography for routine room-temperature structure determination at synchrotrons journal September 2017
Characterization of the Metal-Binding Sites of the β-Lactamase from Bacteroides fragilis journal January 1996
X-ray Laue Diffraction from Protein Crystals journal March 1984
A general reaction mechanism for carbapenem hydrolysis by mononuclear and binuclear metallo-β-lactamases journal September 2017
Low-dose fixed-target serial synchrotron crystallography journal March 2017
Metal Content and Localization during Turnover in B. cereus Metallo-β-lactamase journal November 2008
2-Mercaptomethyl Thiazolidines (MMTZs) Inhibit All Metallo-β-Lactamase Classes by Maintaining a Conserved Binding Mode journal August 2021
Motion of the Zinc Ions in Catalysis by a Dizinc Metallo-β-Lactamase journal August 2009
Hydrolysis of cephalexin and meropenem by New Delhi metallo-β-lactamase: the substrate protonation mechanism is drug dependent journal January 2017
Metallo-β-lactamase structure and function: Metallo-β-lactamase structure and function journal November 2012
Features and development of Coot journal March 2010
Structure, Genetics and Worldwide Spread of New Delhi Metallo-β-lactamase (NDM): a threat to public health journal April 2017
REFMAC 5 for the refinement of macromolecular crystal structures journal March 2011
Protein Production for Structural Genomics Using E. coli Expression book January 2014
Metallo-β-lactamases in the Age of Multidrug Resistance: From Structure and Mechanism to Evolution, Dissemination, and Inhibitor Design journal June 2021
Time-resolved crystallography reveals allosteric communication aligned with molecular breathing journal September 2019
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Retinal isomerization in bacteriorhodopsin captured by a femtosecond x-ray laser journal June 2018
Pink-beam serial crystallography journal November 2017
New Delhi metallo-beta-lactamase (NDM-1): towards a new pandemia? journal December 2010
Structural Determinants of Substrate Binding to Bacillus cereus Metallo-β-lactamase journal June 2004
The Continuing Challenge of Metallo-β-Lactamase Inhibition: Mechanism Matters journal July 2018
On the Mechanism of the Metallo-β-lactamase from Bacteroides fragilis journal August 1999
Molecular replacement with MOLREP journal December 2009
The HARE chip for efficient time-resolved serial synchrotron crystallography journal February 2020
Observation of substrate diffusion and ligand binding in enzyme crystals using high-repetition-rate mix-and-inject serial crystallography journal September 2021
Trapping and Characterization of a Reaction Intermediate in Carbapenem Hydrolysis by B. cereus Metallo-β-lactamase
  • Tioni, Mariana F.; Llarrull, Leticia I.; Poeylaut-Palena, Andrés A.
  • Journal of the American Chemical Society, Vol. 130, Issue 47 https://doi.org/10.1021/ja801169j
journal November 2008
Structural and biochemical analysis of the metallo‐β‐lactamase L1 from emerging pathogen Stenotrophomonas maltophilia revealed the subtle but distinct di‐metal scaffold for catalytic activity journal December 2019
Laue crystallography: coming of age journal July 1999
Zinc Photocages with Improved Photophysical Properties and Cell Permeability Imparted by Ternary Complex Formation journal June 2019