Results 41 to 50 of about 564,515 (340)

Penicillin-binding proteins in Actinobacteria [PDF]

open access: yesThe Journal of Antibiotics, 2014
Because some Actinobacteria, especially Streptomyces species, are β-lactam-producing bacteria, they have to have some self-resistant mechanism. The β-lactam biosynthetic gene clusters include genes for β-lactamases and penicillin-binding proteins (PBPs), suggesting that these are involved in self-resistance. However, direct evidence for the involvement
openaire   +2 more sources

Penicillin‐Binding Protein Imaging Probes [PDF]

open access: yesCurrent Protocols in Chemical Biology, 2013
ABSTRACTPenicillin‐binding proteins (PBPs) are membrane‐associated proteins involved in the biosynthesis of peptidoglycan (PG), the main component of bacterial cell walls. These proteins were discovered and named for their affinity to bind the β‐lactam antibiotic penicillin.
Ozden, Kocaoglu, Erin E, Carlson
openaire   +2 more sources

Perturbed cholesterol and vesicular trafficking associated with dengue blocking in Wolbachia-infected Aedes aegypti cells [PDF]

open access: yes, 2017
Wolbachia are intracellular maternally inherited bacteria that can spread through insect populations and block virus transmission by mosquitoes, providing an important approach to dengue control.
Ant, Thomas H.   +9 more
core   +7 more sources

Structural and Regulatory Changes in PBP4 Trigger Decreased β-Lactam Susceptibility in Enterococcus faecalis

open access: yesmBio, 2018
Enterococcus faecalis strains resistant to penicillin and ampicillin are rare and have been associated with increases in quantities of low-affinity penicillin-binding protein 4 (PBP4) or with amino acid substitutions in PBP4. We report an E.
Louis B. Rice   +8 more
doaj   +1 more source

Allosteric p97 inhibitors can overcome resistance to ATP-competitive p97 inhibitors for potential anti-cancer therapy [PDF]

open access: yes, 2020
A major challenge of targeted cancer therapy is the selection for drug‐resistant mutations in tumor cells leading to loss of treatment effectiveness. p97/VCP is a central regulator of protein homeostasis and a promising anti‐cancer target because of its ...
Chou, Tsui-Fen   +5 more
core   +1 more source

Penicillin binding proteins as danger signals: meningococcal penicillin binding protein 2 activates dendritic cells through Toll-like receptor 4.

open access: yesPLoS ONE, 2011
Neisseria meningitidis is a human pathogen responsible for life-threatening inflammatory diseases. Meningococcal penicillin-binding proteins (PBPs) and particularly PBP2 are involved in bacterial resistance to β-lactams. Here we describe a novel function
Marcelo Hill   +15 more
doaj   +1 more source

In Silico Design and Molecular Docking Studies of Carbapenem Analogues Targeting Acinetobacter baumannii PBP1A Receptor

open access: yesAl-Mustansiriyah Journal of Pharmaceutical Sciences, 2020
Carbapenems are considered as the most effective antibiotic against Acinetobacter baumannii infections, as the pathogen has a resistance to the most of the other beta-lactam antibiotics; however, recent studies proved that this pathogen has developed
Twana Salih, Hawzhin A. Salih
doaj   +1 more source

Surfactant-free purification of membrane protein complexes from bacteria: application to the staphylococcal penicillin-binding protein complex PBP2/PBP2a [PDF]

open access: yes, 2014
Surfactant-mediated removal of proteins from biomembranes invariably results in partial or complete loss of function and disassembly of multi-protein complexes. We determined the capacity of styrene-co-maleic acid (SMA) co-polymer to remove components of
Dafforn, Timothy R   +8 more
core   +3 more sources

Affinity of cefoperazone for penicillin-binding proteins [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 1980
Cefoperazone (T-1551, CFP) a new semisynthetic cephalosporin, has a broad spectrum of antibacterial activity. We investigated the affinity of CFP to penicillin-binding proteins (PBPs) and the inhibition of peptidoglycan synthesis by CFP. CFP had high affinities for Escherichia coli PBP-3, -1Bs, -2, and -1A, in descending order, and low affinities for ...
N, Matsubara   +4 more
openaire   +2 more sources

Hfq mutation confers increased cephalosporin resistance in Klebsiella pneumoniae [PDF]

open access: yesArchives of Biological Sciences, 2017
Klebsiella pneumoniae (K. pneumoniae), is an opportunistic pathogen raising significant public health concerns owing to its multi-drug resistance. Hfq, one of the main RNA-binding proteins, is a key post-transcriptional regulator.
Li Xinran   +7 more
doaj   +1 more source

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