Results 51 to 60 of about 558,213 (199)

Bacterial Resistance to Penicillin G by Decreased Affinity of Penicillin-Binding Proteins: A Mathematical Model

open access: yesEmerging Infectious Diseases, 2003
Streptococcus pneumoniae and Neisseria meningitidis have very similar mechanisms of resistance to penicillin G. Although penicillin resistance is now common in S. pneumoniae, it is still rare in N. meningitidis.
L. Temime   +3 more
doaj   +1 more source

Resistance to β-lactam antibiotics conferred by point mutations in penicillin-binding proteins PBP3, PBP4 and PBP6 in Salmonella enterica. [PDF]

open access: yesPLoS ONE, 2014
Penicillin-binding proteins (PBPs) are enzymes responsible for the polymerization of the glycan strand and the cross-linking between glycan chains as well as the target proteins for β-lactam antibiotics.
Song Sun, Maria Selmer, Dan I Andersson
doaj   +1 more source

Development of 'Redox Arrays' for identifying novel glutathionylated proteins in the secretome [PDF]

open access: yes, 2015
Proteomics techniques for analysing the redox status of individual proteins in complex mixtures tend to identify the same proteins due to their high abundance.
Bottazzi, Barbara   +6 more
core   +1 more source

Penicillin-Binding Proteins and β-Lactam Resistance [PDF]

open access: yesFEMS Microbiology Reviews, 2008
A number of ways and means have evolved to provide resistance to eubacteria challenged by beta-lactams. This review is focused on pathogens that resist by expressing low-affinity targets for these antibiotics, the penicillin-binding proteins (PBPs). Even within this narrow focus, a great variety of strategies have been uncovered such as the acquisition
Zapun, André   +2 more
openaire   +3 more sources

β‐Lactam resistance in Streptococcus pneumoniae: penicillin‐binding proteins and non‐penicillin‐binding proteins [PDF]

open access: yesMolecular Microbiology, 1999
The β‐lactams are by far the most widely used and efficacious of all antibiotics. Over the past few decades, however, widespread resistance has evolved among most common pathogens. Streptococcus pneumoniae has become a paradigm for understanding the evolution of resistance mechanisms, the simplest of which, by far, is the production of β‐lactamases. As
R, Hakenbeck   +3 more
openaire   +2 more sources

PBP4 Is Likely Involved in Cell Division of the Longitudinally Dividing Bacterium Candidatus Thiosymbion Oneisti

open access: yesAntibiotics, 2021
Peptidoglycan (PG) is essential for bacterial survival and maintaining cell shape. The rod-shaped model bacterium Escherichia coli has a set of seven endopeptidases that remodel the PG during cell growth.
Jinglan Wang   +4 more
doaj   +1 more source

PBP4: A New Perspective on Staphylococcus aureus β-Lactam Resistance. [PDF]

open access: yes, 2018
β-lactam antibiotics are excellent drugs for treatment of staphylococcal infections, due to their superior efficacy and safety compared to other drugs.
Chambers, Henry F   +3 more
core   +3 more sources

The effect of MurM and a branched cell wall structure on penicillin resistance in Streptococcus pneumoniae

open access: yesJournal of Bacteriology
The aminoacyltransferase MurM is an important penicillin resistance determinant in Streptococcus pneumoniae. This enzyme attaches a serine or alanine to the side chain of lysine, the third residue of the pentapeptide of lipid II, resulting in branched ...
Ragnhild Sødal Gjennestad   +7 more
doaj   +1 more source

Novel Penicillin Analogues as Potential Antimicrobial Agents; Design, Synthesis and Docking Studies. [PDF]

open access: yesPLoS ONE, 2015
A number of penicillin derivatives (4a-h) were synthesized by the condensation of 6-amino penicillinic acid (6-APA) with non-steroidal anti-inflammatory drugs as antimicrobial agents.
Zaman Ashraf   +3 more
doaj   +1 more source

Mutation of CD2AP and SH3KBP1 binding motif in alphavirus nsP3 hypervariable domain results in attenuated virus [PDF]

open access: yes, 2018
Infection by Chikungunya virus (CHIKV) of the Old World alphaviruses (family Togaviridae) in humans can cause arthritis and arthralgia. The virus encodes four non-structural proteins (nsP) (nsP1, nsp2, nsP3 and nsP4) that act as subunits of the virus ...
Aquilimeba, Muriel   +13 more
core   +3 more sources

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