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The activity of cysteine endopeptidases involved in the germ
2020-02-04
The activity of cysteine endopeptidases involved in the germination of caryopses is generally regulated at two levels: the hormonal induction of synthesis by gibberellins (Drzymała et al., 2008) and a putative regulation of activity by phytocystatines (Kiyosaki et al., 2007, Martinez et al., 2009),
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Downregulation of tumor suppressors is a major factor that l
2020-02-04
Downregulation of tumor suppressors is a major factor that leads to tumorigenesis. Phosphatase and tensin homolog deleted on chromosome 10 (PTEN), a common tumor suppressor, the p97 of which is often downregulated or even absent in the majority of human cancers, functions as a phosphatase to dephos
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Transduction of cellular signals by G protein
2020-02-04
Transduction of cellular signals by G protein-coupled receptors (GPCRs) is stringently regulated to prevent the deleterious effects of unrestrained GPCR signaling. The rapid termination of signaling mediated by agonist-occupied GPCRs is referred to as homologous desensitization and involves the foll
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br Introduction Receptor tyrosine kinases RTKs
2020-02-04
Introduction Receptor tyrosine kinases (RTKs) are critically involved in the development and progression of human cancers and are therefore useful targets for anti-cancer therapies [1]. The Eph receptors represent the largest subfamily of receptor protein kinases and interact with ligands called
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One of the most fundamental distinctions between Ub signals
2020-02-04
One of the most fundamental distinctions between Ub signals is substrate monoubiquitination versus polyubiquitination. With the exception of the E2, UBE2W, which represents a special case because it Copanlisib only ubiquitinates the flexible N-termini of substrates [5], [6], [20], most examples of
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br Substoichiometric substrate modification E ligases
2020-02-04
Substoichiometric substrate modification E3 ligases catalyze the rapid transfer of the SUMOD from the E2 enzyme to the substrate. By definition, enzymes are recycled in the reaction, allowing multiple rounds of substrate modification by a single enzyme. Thus, enzymes function at substoichiometric
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Verapamil a calcium channel blocker used clinically
2020-02-04
Verapamil, a calcium channel blocker used clinically as a coronary vasodilator, was amongst the first compounds identified that could reverse MDR and potentiate the effects of MDR1 substrates such as vincristine [15], [16]. Verapamil, along with a number of other MDR1 blockers, have proved largely u
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br Introduction Plasmodium falciparum malaria continues to
2020-02-04
Introduction Plasmodium falciparum malaria continues to be a major global cause of mortality and morbidity. Malaria treatment and control has been complicated by the emergence of resistance to widespread antimalarial drug use. The most common method for measuring antimalarial resistance is estima
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Kshirsagar et al previously reported an association
2020-02-04
Kshirsagar et al. previously reported an association between CHK2thr68 expression and the presence of the chromatin remodeling factor Rsf-1 in solid HGSC specimens [22]. Rsf-1 expression was previously analyzed in our effusion series and was found to be related to poor survival [23]. Analysis of the
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Enlarging the ligand binding pocket by reduction of
2020-02-04
Enlarging the ligand-binding pocket by reduction of the size of the residue F435 switched DES to an agonist indicating that F435 is involved in mediating the antagonistic effect of DES (Fig. 7E) [13]. The conformation of the smaller side chain of L435 was either not altered by DES or was too small t
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Another enzyme class that has emerged as a potential alterna
2020-02-03
Another enzyme class that has emerged as a potential alternative to P450s are the so-called ‘unspecific peroxygenases’ (UPOs). They also contain a heme but are extracellularly expressed fungal enzymes that are often more stable than P450 monooxygenases. Importantly, UPOs use H2O2 instead of O2 as th
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Several single nucleotide polymorphisms SNPs in
2020-02-03
Several single nucleotide polymorphisms (SNPs) in humans affect CYP3A expression and activity (Lamba et al., 2002). The CYP3A4 SNP rs2740574 (also referred to as CYP3A4*1B, by The Human Cytochrome P450 (CYP) Allele Nomenclature Database, http://www.cypalleles.ki.se/) is a change in the promoter regi
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br Materials and methods br Results
2020-02-03
Materials and methods Results and discussion Conclusions Codon-optimized MGSK-Lys-C was expressed at a high level in an optimized expression system as inclusion bodies. The Lys-C activity reached its maximum with about 9340 nkat/Lculture under standard (chemical) refolding conditions. The r
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Another critical finding in this study is
2020-02-03
Another critical finding in this study is that the level of αSyn oligomers in the SN of σ1R−/− mice was progressively increased with age, whereas the levels of αSyn monomers and αSyn messenger RNA (data not shown) were not altered compared to WT mice. A number of studies reported that soluble αSyn m
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br Conclusions br Acknowledgements This work was supported
2020-02-03
Conclusions Acknowledgements This work was supported by the Science and Technology Planning Projects of Guangdong Province (2014A020210027); the Major Scientific Research Projects of Universities in Guangdong Province (2016KZDXM042); the Natural Science Foundation of Guangdong Province (2015A0
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