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Formoterol Hemifumarate chemical While apparent that His Art
2019-08-02
While apparent that [His]6-Artemis fractionated over a HAP column is devoid of 5′–3′ exonuclease activity but still retains DNA-PK dependent hairpin-opening activity, we sought to further assess DNA-PK dependent Artemis overhang cleavage activity to ensure all the in vivo, intrinsic enzymatic activi
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br In half a century after its
2019-08-02
In 2015–2016, half a century after its first biochemical characterization as a template-independent polymerase, it was shown that TdT can, firstly, assemble a DNA synapsis by itself, optimally with one micro-homology base-pair between strands [] and secondly, perform a template-dependent nucleotid
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Extracellular uridine can be transported across the
2019-08-02
Extracellular uridine can be transported across the cell membrane to enter the nucleotide salvage pathway. A colon cancer cell line supplemented with uridine was capable of growing normally in the presence of 1 μM brequinar (Peters et al., 1992). The supplemented uridine may be transported into the
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br Introduction Biocatalysis can be used to synthesize chira
2019-08-02
Introduction Biocatalysis can be used to synthesize chiral building blocks, such as monomers for polymer materials, and precursors for pharmaceuticals [[1], [2], [3], [4]]. Enzymes are very suitable for catalyzing reactions with high enantioselectivity to obtain chiral products. For instance, alc
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A series of monocarboxylated chalcones e g compounds and Fig
2019-08-02
A series of monocarboxylated chalcones (e.g. compounds 7 and 8, Fig. 2A) was previously identified as good CysLT1 antagonists [20], and none of them exhibited CysLT2 antagonistic activities (Supplementary Table S1). This study was consistent with reported result that CysLT2 BRD4770 for was not sens
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Bikinin to In a study on the time
2019-08-02
In a study on the time course of a mechanism-based inactivation of CYP3A by HIV protease inhibitors, Katzenmaier et al. [37] reported that the suppression of CYP3A activity continued for threedays after the discontinuation of ritonavir. In the present study, the CYP3A activity on day 28 after a seve
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As proof of principle the effect of selective
2019-08-01
As proof of principle, the effect of selective blockade was measured using TAK-044, a peptide antagonist with approximately 250-fold selectivity for the ETA subtype over ETB as measured by ligand binding in the human heart. A 30-mg infusion over 15 minutes of TAK-044 (providing a serum concentration
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Does a universal mechanism for TLS exist Our previous
2019-08-01
Does a universal mechanism for TLS exist? Our previous studies using the bacteriophage T4 DNA polymerase generated the model provided in Fig. 7 that quantifies the molecular forces influencing key steps in the polymerization pathway during the replication of a non-instructional versus miscoding DNA
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Acknowledgments We are grateful to Dr
2019-08-01
Acknowledgments We are grateful to Dr. Jean-Marie Bernassau for his leadership in establishing our virtual screening platform and Dr. Julie Bick for protein purification. X-ray data collection for compound 4 was performed by Shamrock Structures at Southeast Regional Collaborative Access Team (SER-C
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Two key enzymes play important roles in
2019-08-01
Two key enzymes play important roles in the bioconversion of xylitol from d-arabitol, namely d-arabitol dehydrogenase (ArDH) and NADH-dependent xylitol dehydrogenase (XDH), respectively (Qi et al., 2014). In an earlier study, we developed a high xylitol yield strain by expressing xdh in E. coli BL21
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Three DDR binding sites have been mapped
2019-08-01
Three DDR2 binding sites have been mapped on the collagen triple helix by us for collagen type 1 and by others using the collagen toolkit for collagen type 2. All of the three reported binding sequences are conserved in the α1 chain of collagen types 1, 2 and 3. The central motif sequence GARGQAGVMG
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We show that direct contact with MSCs is necessary and
2019-08-01
We show that direct contact with MSCs is necessary and sufficient to induce DDR2 upregulation in breast cancer cells. DDR2 expression in MSC is required for collagen deposition and leads to increased DDR2 expression and activation in breast cancer cells. This paracrine-autocrine MSC-cancer cell axis
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Collagen alignment can contribute to tissue stiffening Malik
2019-08-01
Collagen alignment can contribute to tissue stiffening (Malik et al., 2015, Paszek et al., 2005), and ECM stiffness in turn is a powerful activator of integrin function (Levental et al., 2009). These findings highlight the contribution of the mechanical properties of the ECM to signal transduction.
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HEK cells stably transfected with CysLT were stimulated with
2019-08-01
HEK-293 CB-839 stably transfected with CysLT1 were stimulated with LTD and internalization was studied by confocal microscopy, FACS or cell-surface ELISA. Cells were co-transfected with wildtype and dominant negative (DN) mutants of arrestin and dynamin. Clathrin-mediated endocytosis was investiga
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Another question concerns the mechanism of PC reduction duri
2019-08-01
Another question concerns the mechanism of PC reduction during the phosphate starvation response. There are at least three main mechanisms of PC depletion: suppression of PC synthesis due to substrate exhaustion, downregulation of PC synthase expression by suppression of gene transcription or intens
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