Results 41 to 50 of about 307,440 (265)

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

Differentiation of Bacillus globisporus, Bacillus marinus comb. nov., Bacillus aminovorans, and Bacillus insolitus [PDF]

open access: yesInternational Journal of Systematic Bacteriology, 1983
The type strains of Bacillus globisporus subsp. globisporus and B. globisporus subsp. marinus were shown to have only 20% deoxyribonucleic acid homology. These two organisms could be differentiated by 15 physiological characteristics, including salt requirements, production of β-galactosidase, digestion of urea and esculin, fermentation of ...
openaire   +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

Evaluation of effect the cyclic lipopeptides from Bacillus atrophaeus HNSQJYH170 on Candida species

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2018
Background and Objectives: In humans, during the recent years, several factors have increased the risk of fungal infections, like broad spectrum antibiotics, immune compromised patients, cytotoxic chemotherapy and transplantations.
Solmaz Moghtadi pisheh, Mahboobeh madani
doaj  

Decolorization of Methyl Orange (As a Model Azo Dye) by the Newly Discovered Bacillus Sp [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2005
A bacterial strain (strain PS) was isolated from the textile effluents carrying Serilene Black BNFS® (C.I. Disp. Blk. Mix) disperse dye. The isolate was able to decolorize the dye without the need for any exogenous carbon source.
Ahmad Ali Pourbabaee   +3 more
doaj  

Some New Bacilli: Bacillus Metaflavus, Bacillus Flavoides, Bacillus Multiformis, Bacillus Canalensis, Bacillus Pomodoriferus.

open access: yesExperimental Biology and Medicine, 1928
Bacillus metaflavus Castellani. This bacillus I have grown several times from scrapings of the skin of the axillary and pubic regions. It is a most peculiar organism, and it is very doubtful whether it is a bacillus at all; it is gram-negative.In preparations from agar cultures the organism appears as a long straight, or more often curved, large-sized ...
openaire   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

open access: yesFEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

How phagocytic cells kill bacteria: Lessons from a professional killer

open access: yesFEBS Open Bio, EarlyView.
How phagocytic cells ingest and kill bacteria has been studied for more than a century, but many questions remain unanswered. The study of the amoeba Dictyostelium discoideum brings new answers, and new questions. Professional phagocytic cells such as neutrophils and macrophages, as well as free‐living soil amoebae like Dictyostelium discoideum, employ
Otmane Lamrabet, Pierre Cosson
wiley   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu   +9 more
wiley   +1 more source

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