Un reactivo excelente para el mantenimiento de los grupos SH en estado reducido; reduce cuantitativamente los disulfuros. El DTT reduce de manera eficaz los enlaces disulfuro de las proteínas en tampones de muestra antes de la SDS-PAGE. El DTT puede utilizarse también para reducir el puente disulfuro del reticulante N,N′-bis(acriloil)cistamina con el fin de separar la matriz de un gel de poliacrilamida. El DTT es menos mordaz y menos tóxico que el 2-mercaptoetanol. Normalmente se requiere una concentración de DTT siete veces inferior (100 mM) a la concentración utilizada del 2-mercaptoetanol (5 % v/v, 700 mM).
The Journal of biological chemistry, 288(10), 7230-7240 (2013-01-25)
In Pichia pastoris, the peroxisomal targeting signal 2 (PTS2)-dependent peroxisomal matrix protein import pathway requires the receptor, Pex7, and its co-receptor Pex20. A conserved lysine (Lys(19)) near the N terminus of Pex20 is required for its polyubiquitination and proteasomal degradation
In eukaryotes, deubiquitinases (DUBs) remove ubiquitin conjugates from diverse substrates, altering their stabilities, localizations or activities. Here we show that many DUBs of the USP and UCH subfamilies can be reversibly inactivated upon oxidation by reactive oxygen species in vitro
A novel neutrophil chemoattractant derived from collagen, proline-glycine-proline (PGP), has been recently characterized in chronic obstructive pulmonary disease (COPD). This peptide is derived via the proteolytic activity of matrix metalloproteases (MMP's)-8/9 and PE, enzymes produced by neutrophils and present in
Environmental science and pollution research international, 20(8), 5502-5511 (2013-02-26)
Effect of nitric oxide donor (sodium nitroprusside, SNP, 500 μM) or hydrogen peroxide scavenger (dithiothreitol, DTT, 500 μM) on cadmium (Cd) or copper (Cu) uptake (150 μM solutions) and toxicity using Scenedesmus quadricauda was studied. Combined treatments (Cd or Cu
Thioredoxin (Trx) is a key player in redox homeostasis in various cells, modulating the functions of target proteins by catalyzing a thiol-disulfide exchange reaction. Target proteins of cytosolic Trx-h of higher plants were studied, particularly in the plasma membrane, because
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