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.read more
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Dissertation
Directed evolution of penicillin V acylase from "Streptomyces lavendulae" and aculeacin A acylase from "Actinoplanes utahensis"
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Advancement towards Antibiotic Remediation: Heterostructure and Composite materials
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Structural and mechanistic studies of the orf12 gene product from the clavulanic acid biosynthesis pathway.
Karin Valegård,Aman Iqbal,Nadia J. Kershaw,David Ivison,Catherine Généreux,Alain Dubus,Cecilia Blikstad,Marina Demetriades,Richard J. Hopkinson,Adrian J. Lloyd,David I. Roper,Christopher J. Schofield,Inger Andersson,Michael A. McDonough +13 more
TL;DR: Mutagenesis studies imply that Ser173, which is present in a conserved SXXK motif, acts as a nucleophile in catalysis, consistent with studies of related esterases, β-lactamases and D-Ala carboxypeptidases.
References
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Journal ArticleDOI
Peptidoglycan types of bacterial cell walls and their taxonomic implications.
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.
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.