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In mammals ribonucleotide reductase RNR
2020-10-12
In mammals, ribonucleotide reductase (RNR) is a unique enzyme that catalyzes the rate-limiting step of de novo synthesis of deoxyribonucleoside triphosphates (dNTPs).7, 8 Mammalian RNR consists of two homodimer subunits: the large catalytic dimer RRM1 and the small regulatory dimer RRM2 or RRM2B. An
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The interaction of EPAC with Rim has an important role
2020-10-12
The interaction of EPAC2 with Rim1 has an important role in regulating neurotransmitter release. In addition, a recent EPAC2 knockout mice model study provides evidence that EPAC2 promotes transmitter release by maintaining the readily releasable pool (RRP) at mossy fiber (MF) synapses in the hippo
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In the present study promoting bile acid synthesis by
2020-10-12
In the present study, promoting bile methysergide synthesis by activating EP4 receptors was shown to exert protection against hepatic steatosis. This finding may be relevant for treatment of non-alcoholic fatty liver disease, a major cause of liver disease and prominent indication for liver transpla
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The dihydroxynaphthalene derived substrates a a and a Table
2020-10-12
The 2,3-dihydroxynaphthalene-derived substrates 18a, 20a and 22a (Table 2) allowed only moderate growth of all members of the panel of microorganisms suggesting that these substrates were inhibitory to some extent. Strong growth of the Gram-negative microorganisms and moderate growth of the Gram-pos
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br Cytochrome P monooxygenases Cytochrome P monooxygenases
2020-10-12
Cytochrome P450 monooxygenases Cytochrome P450 monooxygenases (P450s) belong to one of Nature’s most versatile group of enzymes for C–H functionalization and are able to perform challenging regioselective and stereoselective activations of remote, unactivated C(sp3)–H bonds, for which there are o
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br Introduction Esophageal squamous cell carcinoma ESCC is
2020-10-12
Introduction Esophageal squamous cell carcinoma (ESCC) is one of the most common types of cancer in East Asia and is a leading cause of cancer-related death worldwide.1, 2 Surgery is widely used for treatment in localized disease, where it can provide definitive management and potential cure. Tre
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In the course of this study K
2020-10-12
In the course of this study, K+PFOS did not appear to have any effect on the thyroid parameters evaluated (H&E histology, follicular epithelial cell proliferation, and follicular epithelial apoptosis). This is an interesting observation considering the fact that treatment with K+PFOS resulted in act
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br Substoichiometric substrate modification E ligases cataly
2020-10-10
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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br Introduction Protein modification by ubiquitin and ubiqui
2020-10-10
Introduction Protein modification by ubiquitin and ubiquitin-like proteins is one of the most common and important regulatory mechanisms in biology (Finley et al., 2004, Pickart, 2004). Ubiquitination is carried out by an enzymatic cascade consisting of three steps. In the first step, ubiquitin i
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Based on the above background gliptins may exert natriuretic
2020-10-10
Based on the above background, gliptins may exert natriuretic and diuretic effects as well [[112], [119]]. In accordance with this, Girardi and co-workers have demonstrated a physical interplay between DPP-4 and the NHE3 exchanger in the brush-border epithelium of the proximal renal tubule, suggesti
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In general the DNMT encompass three different structural reg
2020-10-10
In general, the DNMT encompass three different structural regions: N-terminal regulatory domain, C-terminal catalytic domain and a central linker region (). The N-terminal regulatory domain is particularly implicated in determining subcellular localization of the DNMT and in allocating unmethylated
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PTC-209 The first example of a broadly acting
2020-10-10
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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br MCADD review br Funding None br Introduction Bacteroides
2020-10-10
MCADD review Funding None. Introduction Bacteroides species are obligate anaerobes, Gram-negative, and non-spore-forming bacteria and 21 species of this genus are found particularly in the oral cavity and gastrointestinal tract in vertebrates [1,2]. B. fragilis is the most common GM 6001 s
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Predictions of enzyme topology for DGAT are more difficult
2020-10-10
Predictions of enzyme topology for DGAT2 are more difficult since the DGAT2 polypeptide sequences are more diverse across species than those of DGAT1. The length and function of the hydrophilic N-terminus preceding the first hydrophobic segment varies with species – for example, segments in fungi ar
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There is an increase in
2020-10-10
There is an increase in small fruit consumption especially berries in recently. Because small fruits are rich sources of both anthocyanins and phenolic compounds. These chemicals have been found in Vaccinium corymbosum in high levels. Research on small fruits is of vital importance for human nutriti
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