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Open AccessJournal ArticleDOI

The penicillin-binding proteins: structure and role in peptidoglycan biosynthesis

TLDR
An overview of the content in PBPs of some bacteria is provided with an emphasis on comparing the biochemical properties of homologous PBPs (orthologues) belonging to different bacteria.
Abstract
Penicillin-binding proteins (PBPs) have been scrutinized for over 40 years. Recent structural information on PBPs together with the ongoing long-term biochemical experimental investigations, and results from more recent techniques such as protein localization by green fluorescent protein-fusion immunofluorescence or double-hybrid assay, have brought our understanding of the last stages of the peptidoglycan biosynthesis to an outstanding level that allows a broad outlook on the properties of these enzymes. Details are emerging regarding the interaction between the peptidoglycan-synthesizing PBPs and the peptidoglycan, their mesh net-like product that surrounds and protects bacteria. This review focuses on the detailed structure of PBPs and their implication in peptidoglycan synthesis, maturation and recycling. An overview of the content in PBPs of some bacteria is provided with an emphasis on comparing the biochemical properties of homologous PBPs (orthologues) belonging to different bacteria.

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Citations
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The Mechanisms of Resistance to b-Lactam Antibiotics

TL;DR: This chapter addresses the major mechanisms of bacterial resistance to the b-lactams and highlights some of the recent advances in circumventing this resistance.
Journal ArticleDOI

Evolution of β-lactamases and enzyme promiscuity.

TL;DR: In this article, the authors provide a bird's eye view on the evolution of β-lactamases within the two enzyme superfamilies through phylogenetic analysis, i.e. the penicillin-binding protein-like and metallo-β-Lactamase superfamily.
Journal ArticleDOI

The Biological Properties and Potential Interacting Proteins of d-Alanyl-d-alanine Ligase A from Mycobacterium tuberculosis

TL;DR: The dataset provided a valuable resource for exploring Tb-DdlA biology, and an easy colorimetric assay for screening of DdlA inhibitors was developed for high-throughput Screening of DtlA inhibitors in this study.
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Antimicrobial potency evaluation of free and immobilized l-asparaginase using chitosan nanoparticles

TL;DR: In silico and in vitro study, it was found that enzyme nano-carrier has better therapeutic potential as compared to free enzyme, and motivates it to explore its role as antibiotherapy.
References
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Book

Handbook of proteolytic enzymes

TL;DR: In this paper, Serine Peptidases with a Ser/Lys Catalytic Dyad (SC) are described, as well as their relation to the Nodavirus Coat Protein.

The Handbook of proteolytic enzymes

TL;DR: (Abbreviated Contents Including Section Headings:)
Journal ArticleDOI

Peptidoglycan structure and architecture

TL;DR: In several species examined, the fine structure of the peptidoglycan significantly varies with the growth conditions, and the different models for the architecture are discussed with respect to structural and physical parameters.
Journal ArticleDOI

Growth of the Stress-Bearing and Shape-Maintaining Murein Sacculus of Escherichia coli

TL;DR: A model is presented that postulates that maintenance of bacterial shape is achieved by the enzyme complex copying the preexisting murein sacculus that plays the role of a template.
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