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

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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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Journal ArticleDOI

Genome-wide identification of genes required for alternative peptidoglycan cross-linking in Escherichia coli revealed unexpected impacts of β-lactams

TL;DR: In this paper , the authors used the functional replacement of penicillin-binding proteins (PBPs) by a β-lactam-insensitive l,d -transpeptidase to identify genes essential to mitigate the effects of PBP inactivation by β-latams in actively dividing bacteria.
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Direct Conjugation of Penicillins and Cephalosporins with Proteins for Receptor Assays of Beta-Lactam Antibiotics

TL;DR: In this article , 15 protein conjugates of penicillins and cephalosporins containing amino-and/or carboxylic groups in the initial structures have been synthesized in the reactions with human serum albumin or ovalbumin using 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride (EDC) or a combination of EDC and N -hydroxysulfosuccinimide at various ratios of the base reagents.
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Evaluation of virulence potential of methicillin-sensitive and methicillin-resistant Staphylococcus aureus isolates from a German refugee cohort

TL;DR: In this article , the authors investigated the resistance and virulence of community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) by whole genome data analysis.
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Prospects for Expanding Drug Therapy for Multiple Drug Resistant and Extensively Drug Resistant Tuberculosis

TL;DR: This review analyzes 64 publications on repurposed antibiotics and the prospects of their use in the treatment of multiple drug resistant and extensively drug resistant tuberculosis and describes mechanisms of action of beta-lactams and macrolides on tuberculous mycobacteria.
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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