Results 51 to 60 of about 470,402 (305)

Force-extension curves of bacterial flagella

open access: yes, 2010
Bacterial flagella assume different helical shapes during the tumbling phase of a bacterium but also in response to varying environmental conditions. Force-extension measurements by Darnton and Berg explicitly demonstrate a transformation from the coiled
Stark, Holger, Vogel, Reinhard
core   +1 more source

Transfer of antibiotic resistance in Staphylococcus aureus [PDF]

open access: yes, 2017
Staphylococcus aureus is a serious human pathogen with remarkable adaptive powers. Antibiotic-resistant clones rapidly emerge mainly by acquisition of antibiotic-resistance genes from other S. aureus strains or even from other genera.
Haaber, Jakob   +2 more
core   +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

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Aerobic bacterial transformation and biodegradation of dioxins: a review

open access: yesBioresources and Bioprocessing, 2020
Waste generation tends to surge in quantum as the population and living conditions grow. A group of structurally related chemicals of dibenzofurans and dibenzo-p-dioxins including their chlorinated congeners collectively known as dioxins are among the ...
Salametu Saibu   +2 more
doaj   +1 more source

Characterization of the role that bacterial surface polysaccharide poly N-acetyl glucosamine plays in nonvaccine serotypes of streptococcus pneumoniae colonization and pathogenicity [PDF]

open access: yes, 2016
Poly N-acetyl glucosamine is a cell surface polysaccharide that has been characterized in Staphylococcus epidermidis and Staphylococcus aureus as involved in biofilm formation and implicated in virulence.
Jiang, Fanny
core   +1 more source

Differential in vitro and in vivo effect of barley cysteine and serine protease inhibitors on phytopathogenic microorganisms [PDF]

open access: yes, 2011
Protease inhibitors from plants have been involved in defence mechanisms against pests and pathogens. Phytocystatins and trypsin/α-amylase inhibitors are two of the best characterized protease inhibitor families in plants.
Cambra Marin, Ines   +5 more
core   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

OS EXPERIMENTOS DE GRIFFITH NO ENSINO DE BIOLOGIA: A TRANSPOSIÇÃO DIDÁTICA DO CONCEITO DE TRANSFORMAÇÃO NOS LIVROS DIDÁTICOS

open access: yesEnsaio Pesquisa em Educação em Ciências, 2010
Griffith's experiments regarding bacterial transformation Pneumococcus are regarded as essential when related to DNA/heredity recognition process. The current study goal is to assess the didactic transposition of the concept of bacterial transformation ...
Caroline Belotto Batisteti   +2 more
doaj  

Bacterial Transformation of Adamantane and Its Derivatives: Regioselectivity and Biocatalytic Approaches

open access: yesBiology
Adamantane is a unique tricyclic hydrocarbon with a rigid, diamond-like structure. It is widely distributed in natural hydrocarbons and has significant potential applications in medicine, materials science, and pharmaceuticals.
Anastasia A. Ivanova, Anna A. Vetrova
doaj   +1 more source

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