Results 51 to 60 of about 396,425 (311)

Activation of the Extracytoplasmic Function σ Factor σP by β-Lactams in Bacillus thuringiensis Requires the Site-2 Protease RasP

open access: yesmSphere, 2019
Bacteria can utilize alternative σ factors to regulate sets of genes in response to changes in the environment. The largest and most diverse group of alternative σ factors are the extracytoplasmic function (ECF) σ factors.
Theresa D. Ho   +3 more
doaj   +1 more source

On the mechanical interplay between intra- and inter-synchronization during collective cell migration : a numerical investigation [PDF]

open access: yes, 2013
Collective cell migration is a fundamental process that takes place during several biological phenomena such as embryogenesis, immunity response, and tumorogenesis, but the mechanisms that regulate it are still unclear.
ALLENA, Rachele   +3 more
core   +1 more source

The cell-envelope glycolipids of baker's yeast [PDF]

open access: yesBiochemical Journal, 1974
Sphingolipids were found to dominate in the glycolipids from the cell envelope of baker's yeast. A relatively large quantity of ceramides was detected. Among the several complex phosphosphingolipids described, ceramide-(P-inositol)2-mannose was the main component.
K, Työrinoja   +2 more
openaire   +2 more sources

Loss of Bacterial Cell Pole Stabilization in Caulobacter crescentus Sensitizes to Outer Membrane Stress and Peptidoglycan-Directed Antibiotics

open access: yesmBio, 2020
Rod-shaped bacteria frequently localize proteins to one or both cell poles in order to regulate processes such as chromosome replication or polar organelle development.
Simon-Ulysse Vallet   +8 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Phosphoproteins and protein-kinase activity in isolated envelopes of pea (Pisum sativum L.) chloroplasts [PDF]

open access: yes, 1985
A protein kinase was found in envelope membranes of purified pea (Pisum sativum L.) chloroplasts. Separation of the two envelope membranes showed that most of the enzyme activity was localized in the outer envelope.
Soll, Jürgen
core   +1 more source

Synthesis and recycling of the mycobacterial cell envelope

open access: yesCurrent Opinion in Microbiology, 2021
Mycobacterium tuberculosis (Mtb), the causative agent of the disease tuberculosis, is a recognised global health concern. The efficacy of the current treatment regime is under threat due to the emergence of antibiotic resistance, directing an urgent requirement for the discovery of new anti-tubercular agents and drug targets.
Abrahams, Katherine A, Besra, Gurdyal S
openaire   +2 more sources

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Outer envelope membranes from chloroplasts are isolated as right-side-out vesicles [PDF]

open access: yes, 1992
Outer envelope membranes were isolated from purified chloroplasts of pea leaves. The sidedness of the vesicles was analyzed by (i) aqueous polymer-two phase partitioning, (ii) the effect of limited proteolysis on the outer-envelope proteins (OEP) 86 and ...
Eichacker, Susanne   +2 more
core  

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