Results 41 to 50 of about 3,392,726 (209)

Molecular Chaperones in Cancer Stem Cells: Determinants of Stemness and Potential Targets for Antitumor Therapy

open access: yesCells, 2020
Cancer stem cells (CSCs) are a great challenge in the fight against cancer because these self-renewing tumorigenic cell fractions are thought to be responsible for metastasis dissemination and cases of tumor recurrence. In comparison with non-stem cancer
Alexander Kabakov   +2 more
doaj   +1 more source

A structural model of pestivirus E(rns) based on disulfide bond connectivity and homology modeling reveals an extremely rare vicinal disulfide [PDF]

open access: yes, 2002
Erns is a pestivirus envelope glycoprotein and is the only known viral surface protein with RNase activity. Erns is a disulfide-linked homodimer of 100 kDa; it is found on the surface of pestivirus-infected cells and is secreted into the medium.
Ru, A.H., de   +7 more
core   +1 more source

Protein disulfide isomerase as an antithrombotic target [PDF]

open access: yesTrends in Cardiovascular Medicine, 2013
Protein disulfide isomerase (PDI) is a ubiquitously expressed oxidoreductase required for proper protein folding. It is highly concentrated in the endoplasmic reticulum, but can also be released into the extracellular environment. Several in vivo thrombosis models have demonstrated that vascular PDI secreted by platelets and endothelial cells is ...
openaire   +2 more sources

Dimeric structure of the bacterial extracellular foldase PrsA [PDF]

open access: yes, 2015
Secretion of proteins into the membrane-cell wall space is essential for cell wall biosynthesis and pathogenicity in Gram-positive bacteria. Folding and maturation of many secreted proteins depend on a single extracellular foldase, the PrsA protein. PrsA
Schmidpeter, Philipp A. M.   +7 more
core   +1 more source

Characterization of DsbC, a periplasmic protein of Erwinia chrysanthemi and Escherichia coli with disulfide isomerase activity.

open access: yes, 1994
International audienceWe identified and characterized an Erwinia chrysanthemi gene able to complement an Escherichia coli dsbA mutation that prevents disulfide bond formation in periplasmic proteins.
Robert-Baudouy, J   +2 more
core   +5 more sources

Myricetin, the Main Flavonoid in Syzygium cumini Leaf, Is a Novel Inhibitor of Platelet Thiol Isomerases PDI and ERp5

open access: yesFrontiers in Pharmacology, 2020
BackgroundFlavonoids have been characterized as a prominent class of compounds to treat thrombotic diseases through the inhibition of thiol isomerases. Syzygium cumini is a flavonoid-rich medicinal plant that contains myricetin and gallic acid. Little is
Renato Simões Gaspar   +10 more
doaj   +1 more source

Chaperone-mediated native folding of a β-scorpion toxin in the periplasm of E.coli [PDF]

open access: yes, 2014
Background: Animal neurotoxin peptides are valuable probes for investigating ion channel structure/function relationships and represent lead compounds for novel therapeutics and insecticides.
Cole, Ambrose R.   +7 more
core   +1 more source

Molecular characterization and expression profiling of the protein disulfide isomerase gene family in Brachypodium distachyon L. [PDF]

open access: yesPLoS ONE, 2014
Protein disulfide isomerases (PDI) are involved in catalyzing protein disulfide bonding and isomerization in the endoplasmic reticulum and functions as a chaperone to inhibit the aggregation of misfolded proteins. Brachypodium distachyon is a widely used
Chong Zhu   +9 more
doaj   +1 more source

Characterisation of the oxidoreductase Erol-Lß and the misfolding of the secretory pathway substrate HLA-B27 [PDF]

open access: yes, 2007
The endoplasmic reticulum (ER) is the site of oxidative folding for proteins entering the secretory pathway. Here, nascent polypeptides acquire disulfide bonds, which confer both stability and functionality on secretory and ER-resident proteins.
Lemin, Andrew James
core  

AS‐pHopt: An Optimal pH Prediction Model Enhanced by Active Site of Enzymes

open access: yesAdvanced Intelligent Discovery, EarlyView.
To address the low accuracy of enzyme optimal pH (pHopt) prediction, this study develops active site‐based pHopt (AS‐pHopt), a prediction model enhanced by active site information and pseudo‐label prediction. Integrating key structural and physicochemical features affecting enzyme pHopt, AS‐pHopt uses Evolutionary Scale Modeling (ESM)‐2 with active ...
Wenxiang Song   +6 more
wiley   +1 more source

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