Results 61 to 70 of about 3,027,557 (384)

Phage inducible islands in the gram-positive cocci [PDF]

open access: yes, 2016
The SaPIs are a cohesive subfamily of extremely common phage-inducible chromosomal islands (PICIs) that reside quiescently at specific att sites in the staphylococcal chromosome and are induced by helper phages to excise and replicate.
A Bolotin   +47 more
core   +1 more source

Automatic Evaluation of Summaries Using N-gram Co-occurrence Statistics

open access: yesNorth American Chapter of the Association for Computational Linguistics, 2003
Following the recent adoption by the machine translation community of automatic evaluation using the BLEU/NIST scoring process, we conduct an in-depth study of a similar idea for evaluating summaries.
Chin-Yew Lin, E. Hovy
semanticscholar   +1 more source

Mobile Oxazolidinone Resistance Genes in Gram-Positive and Gram-Negative Bacteria

open access: yesClinical Microbiology Reviews, 2021
Seven mobile oxazolidinone resistance genes, including cfr, cfr(B), cfr(C), cfr(D), cfr(E), optrA, and poxtA, have been identified to date. The cfr genes code for 23S rRNA methylases, which confer a multiresistance phenotype that includes resistance to ...
S. Schwarz   +9 more
semanticscholar   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Resurrection of Nalidixic Acid: Evaluation of Water-Based Nanoformulations as Potential Nanomedicine

open access: yesNanoscale Research Letters, 2018
Resistance to quinolone antibiotics has been a serious problem ever since nalidixic acid was introduced into clinical medicine. Over time, resistance of pathogenic microbes to nalidixic acid led to the design of novel variants to revive its potential ...
Alka Pandey   +3 more
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Dimension of gram spectrahedra of univariate polynomials [PDF]

open access: yes, 2015
The Gram Spectrahedron of a polynomial parametrizes its sums-of-squares representations.
Tsukerman, Emmanuel
core  

Outer Membrane Vesicles (OMVs) of Gram-negative Bacteria: A Perspective Update

open access: yesFrontiers in Microbiology, 2017
Outer Membrane Vesicles (OMVs) of Gram-negative bacteria are spherical membrane-enclosed entities of endocytic origin. Reported in the consortia of different bacterial species, production of OMVs into extracellular milieu seems essential for their ...
A. Jan
semanticscholar   +1 more source

Extracellular Vesicle Biogenesis and Functions in Gram-Positive Bacteria

open access: yesInfection and Immunity, 2020
Extracellular vesicles (EVs) are membrane-derived lipid bilayers secreted by bacteria and eukaryotic cells. Bacterial membrane vesicles were discovered over 60 years ago and have been extensively studied in Gram-negative bacteria. During their production,
Paul Briaud, Ronan K. Carroll
semanticscholar   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

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