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nisin synthesis If the factors needed for A
2021-08-16
If the factors needed for A-NHEJ are not completely defined and the A-NHEJ reaction mechanism nebulous, it is also fair to say that the biological role(s) of A-NHEJ is even more poorly understood. Most of the current interest in A-NHEJ, however, stems from its implicated use in the chromosomal trans
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Aldehyde dehydrogenase has been characterized as a cancer st
2021-08-16
Aldehyde dehydrogenase has been characterized as a cancer stem cell marker, which plays a key role in various biological processes in tumor, including cell proliferation, invasiveness and chemoresistance. Recent data of Abourbih et al reported that ALDH1 expression did not correlate with primary tum
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Various domains of the HSA
2021-08-16
Various domains of the HSA molecule have also been used to make bioconjugates with increased stability, better targeting properties, and/or extended half-lives in blood. For example, domain I of HSA has been used in the preparation of antibody conjugates. This was achieved through the use of a cyclo
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The Lyapunov exponent plays a key role in the
2021-08-16
The Lyapunov exponent, plays a key role in the spectral analysis of the family . Here, S denotes the so-called Szegő transfer matrix, defined by Because the matrices so defined satisfy for , we have for . We define By general considerations, there is a compact set with for μ-a.e. . Moreover, by
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CK enzymes belong to a conserved family
2021-08-16
CK1 enzymes belong to a conserved family of serine/threonine protein kinases that plays an important and diverse role in vesicular trafficking, DNA repair, d ap5 progression and cytokinesis in organisms from yeast to humans [15]. In multicellular organisms CK1 enzymes also regulate developmental pat
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Natural progestogens play an important role
2021-08-16
Natural progestogens play an important role in the stimulation of oocyte growth and maturation as well as in spermatogenesis and sperm maturation, and they act as sex pheromones in teleost fish (Kime, 1990, Kobayashi et al., 2002, Nagahama and Yamashita, 2008, Scott et al., 2010). A complex series o
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br Results br Discussion Fetal development occurs
2021-08-16
Results Discussion Fetal development occurs under conditions of low oxygen tension and steady maternal glucose such that physiologic systems including the pancreas are functionally poised in the prenatal state. Postnatally, oxidative metabolism becomes dominant and intermittent feeding exposes
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Enzyme selectivity of many enzymes
2021-08-16
Enzyme selectivity of many rvx synthesis like β-galactosidases, acylases, epoxyhydrolases, lipases, etc. has also been modulated by using different immobilization techniques. It can result in the selection of optimal biocatalyst for different processes. This has many advantages over strategies like
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At the therapeutic level the logical
2021-08-16
At the therapeutic level, the logical approach to address the cooperation between FGFR4 and EGFR was the combined inhibition of both receptors. To explore the potential efficacy and specificity of this approach, we tested the effect of FGFR and EGFR inhibitors in monotherapy or in combination in syn
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br The classical ubiquitination pathway Ubiquitination
2021-08-16
The classical ubiquitination pathway Ubiquitination is an enzymatic process that involves the addition of an ubiquitin protein to a substrate that usually becomes inactivated followed by degradation in the proteasome; however, several other functions have also been described. For the discovery of
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External factors such as protein partners can
2021-08-16
External factors, such as protein partners, can also activate DUBs by either reinforcing the stimulatory effects of intramolecular factors or by other means. The intramolecular activation of the USP7 CD by its HUBL domain is allosterically potentiated by external factor GMP synthase (GMPS), which co
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Mammalian cells have two distinct DNA
2021-08-16
Mammalian lumacaftor have two distinct DNA repair pathways for DSBs, NHEJ and HR. Our data are consistent with the suggestion that the DNA–PK-mediated NHEJ pathway recognizes DSBs faster than the HR pathway and acts before the activation of the DNA damage S-phase checkpoint. The activation of NHEJ b
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Here we investigate in more detail how Dot function
2021-08-16
Here we investigate in more detail how Dot1 function contributes to the regulation of DNA damage tolerance. We find that Dot1 modulates the response to the alkylating agent MMS through its catalytic activity on H3K79. In fact, progressively reduced levels of H3K79 tri-methylation result in gradually
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One step in pyrimidine biosynthesis is conversion of l dihyd
2021-08-16
One step in pyrimidine biosynthesis is conversion of l-dihydroorotate (DHO) to orotate (ORO), under action of the enzyme dihydroorotate dehydrogenase (DHODH, EC 1.3.99.11), which contains a flavine (FMN) as redox cofactor [1]. In this transformation, electrons resulting from DHO oxidation are transf
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The first example of a broadly acting antiviral
2021-08-16
The first example of a broadly-acting antiviral drug is ribavirin, a nucleoside analogue that was proposed to act directly at the level of the viral polymerase, although an indirect effect via inhibition of the host-cell IMP dehydrogenase and depletion of the GTP pool seems more plausible [9]. Anoth
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