Results 31 to 40 of about 343,994 (261)

Characterization of Trypsin-Like Protease of Lactobacillus plantarum FNCC 0270

open access: yesHayati Journal of Biosciences, 2014
Trypsin is an enzyme that has a unique mechanism of cutting peptide bonds specifically at the carboxyl side of lysine or arginine amino acids, with another amino acid.
Trismilah Margono   +3 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

A Model of Demasking and Hydrolysis of Peptide Bonds During Tryptic Digestion of β-Casein and β-Lactoglobulin

open access: yesMolecules
The prediction of polypeptide chain fragmentation during digestion (proteolysis) of protein substrates by trypsin was carried out for globular β-lactoglobulin (β-LG) and micellar β-casein (β-CN).
Mikhail M. Vorob’ev
doaj   +1 more source

Predicting peptide structures in native proteins from physical simulations of fragments. [PDF]

open access: yesPLoS Computational Biology, 2009
It has long been proposed that much of the information encoding how a protein folds is contained locally in the peptide chain. Here we present a large-scale simulation study designed to examine the extent to which conformations of peptide fragments in ...
Vincent A Voelz   +2 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Elucidating functional epitopes within the N-terminal region of malaria transmission blocking vaccine antigen Pfs230

open access: yesnpj Vaccines, 2022
Pfs230 is a leading malaria transmission blocking vaccine (TBV) candidate. Comprising 3135 amino acids (aa), the large size of Pfs230 necessitates the use of sub-fragments as vaccine immunogens. Therefore, determination of which regions induce functional
Kazutoyo Miura   +13 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Antimicrobial peptide-loaded liquid crystalline precursor bioadhesive system for the prevention of dental caries

open access: yesInternational Journal of Nanomedicine, 2018
Kelly Limi Aida,1 Paula Fernanda Kreling,1 Karina Sampaio Caiaffa,2 Giovana Maria Fioramonti Calixto,3 Marlus Chorilli,3 Denise MP Spolidorio,4 Norival Alves Santos-Filho,5,6 Eduardo Maffud Cilli,5 Cristiane Duque1 1Department of Pediatric Dentistry and
Aida KL   +8 more
doaj  

Structural identification of electron transfer dissociation products in mass spectrometry using infrared ion spectroscopy

open access: yesNature Communications, 2016
Mass spectrometry is a leading method used for sequencing peptides and proteins by fragmentation followed by analysis of the sequence fragments. Here, the authors use infrared spectroscopy to characterize the structures of peptide fragments formed during
Jonathan Martens   +3 more
doaj   +1 more source

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