Results 41 to 50 of about 2,690,978 (249)

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

Sestavení kompetitivní enzymové imunoanalýzy pro stanovení α-laktalbuminu a β-laktoglobulinů kravského mléka

open access: yesCzech Journal of Food Sciences, 1999
Polyclonal antibodies were raised against three immunogens- a-lactalbumin (LA), -lactoglobulin A (LGA) and B (LGB). Using these antibodies the procedures of an indirect competitive enzyme immunoassay (ELISA) were constructed, optimized a nd characterized
L. Karasova, P. Rauch, L. Fukal
doaj   +1 more source

The concept of the Sun as ἡγεμονικόν in the Stoa and in Manilius’Astronomica

open access: yesRevista Archai, 2017
Hegemonikon in Stoic vocabulary is the technical term for the chief part or command-centre’of the soul. As we know, the Stoics considered the cosmos a living organism, and they theorised both about the human soul’s Hegemonikon and about its counterpart in the World-soul.
openaire   +3 more sources

On (μ1, μ2, μ3)-Weakly Generalized Closed Sets

open access: yesEuropean Journal of Pure and Applied Mathematics, 2020
This paper defines a new generalization of closed sets in a tri-generalized topological space called (μ1, μ2, μ3)-weakly generalized closed set (or briefly (μ1,μ2, μ3)-wg closed set) which is defined as follows: A subset A of X is (μ1, μ2, μ3)-weakly generalized closed set if clμ1(intμ2(A)) ⊆U whenever A ⊆ U and U is μ3-open in X.
Breix Michael Agua, Rolando N. Paluga
openaire   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Determination of water-insoluble β-D-glucan in the whole-grain cereals and pseudocereals

open access: yesCzech Journal of Food Sciences, 2007
Water-insoluble β-(1,3)-D-glucan (lichenan) was determined in 43 samples of various cereal (oats, barley, wheat, millet) and pseudocereal (buckwheat, amaranth) cultivars using a modified procedure with fungal α-amylase (Fermizyme P 300).
Bernadetta Hozová   +3 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

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

FUNGSI DAN PEMERIKSAAN LIMFOSIT γδT (Functions and Examination of γδT lymphocytes)

open access: yesINDONESIAN JOURNAL OF CLINICAL PATHOLOGY AND MEDICAL LABORATORY, 2018
T lymphocytes most have TCR α and β chains. However, TCR formed from γ and δ chains determine a new subset of T lymphocytes. γδTCR specific to different types of ligands, including bacterial phosphoantigen, nonclassical MHC-I molecules and unprocessed protein.
Yulia Nadar Indrasari, Jusak Nugraha
openaire   +2 more sources

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

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