Results 41 to 50 of about 1,151,409 (309)

Genome-Wide Identification of Essential and Auxiliary Gene Sets for Magnetosome Biosynthesis in Magnetospirillum gryphiswaldense

open access: yesmSystems, 2020
Magnetotactic bacteria (MTB) stand out by their ability to manufacture membrane-enclosed magnetic organelles, so-called magnetosomes. Previously, it has been assumed that a genomic region of approximately 100 kbp, the magnetosome island (MAI), harbors ...
Karen T. Silva   +9 more
doaj   +1 more source

Bacillus subtilis spores displaying RBD domain of SARS-CoV-2 spike protein

open access: yesComputational and Structural Biotechnology Journal, 2023
Bacillus subtilis spores are considered to be efficient and useful vehicles for the surface display and delivery of heterologous proteins. In this study, we prepared recombinant spores with the receptor binding domain (RBD) of the SARS-CoV-2 spike ...
A. Vetráková   +4 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Antibacterial Activity of Metabolites of Endophytic Bacillus subtilis Isolated From Selected Ethiopian Medicinal Plants

open access: yesInternational Journal of Microbiology
Antimicrobial resistance remains a global concern, and there has been sustained exploration of natural products with therapeutic effects. Endophytes are among the potential microorganisms considered as the treasure chest for bioactive secondary ...
Tsedale Tasew   +11 more
doaj   +1 more source

Conserved Genome Organization and Core Transcriptome of the Lactobacillus acidophilus Complex

open access: yesFrontiers in Microbiology, 2018
The Lactobacillus genus encompasses a genetically and functionally diverse group of species, and contains many strains widely formulated in the human food supply chain as probiotics and starter cultures. Within this genetically expansive group, there are
Alexandra B. Crawley   +3 more
doaj   +1 more source

Use of Bayes factors to evaluate the effects of host genetics, litter and cage on the rabbit cecal microbiota

open access: yesGenetics Selection Evolution, 2022
Background The rabbit cecum hosts and interacts with a complex microbial ecosystem that contributes to the variation of traits of economic interest.
María Velasco-Galilea   +4 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Viral Diversity of House Mice in New York City

open access: yesmBio, 2018
The microbiome of wild Mus musculus (house mouse), a globally distributed invasive pest that resides in close contact with humans in urban centers, is largely unexplored. Here, we report analysis of the fecal virome of house mice in residential buildings
Simon H. Williams   +10 more
doaj   +1 more source

Inhibiting bacterial cooperation is an evolutionarily robust anti-biofilm strategy

open access: yesNature Communications, 2020
Bacterial biofilms rely on shared extracellular polymeric substances (EPS) and are often highly tolerant to antibiotics. Here, the authors show in in vitro experiments that Salmonella does not evolve resistance to EPS inhibition because such strains are ...
Lise Dieltjens   +7 more
doaj   +1 more source

Biochemical characterization of extremozyme L-asparaginase from Pseudomonas sp. PCH199 for therapeutics

open access: yesAMB Express, 2023
L-asparaginase (L-ASNase) from microbial sources is a commercially vital enzyme to treat acute lymphoblastic leukemia. However, the side effects associated with the commercial formulations of L-ASNases intrigued to explore for efficient and desired ...
Sanyukta Darnal   +6 more
doaj   +1 more source

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