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A structural explanation for how RBR RING s handle their
2021-01-19

A structural explanation for how RBR RING1s handle their bound E2~Ubs differently from canonical RINGs has not been readily apparent. Only a few residue positions are strongly conserved in RING and RING1 domains, most of which are zinc-coordinating Cys and histidine residues. A key position in canon
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Protein degradation via UPP involves two steps One step
2021-01-19

Protein degradation via UPP involves two steps. One step is the conjugation of multiple ubiquitin to a substrate. The other step is the degradation of tagged protein by the downstream 26S proteasome complex. Protein ubiquitination is the E1–E2–E3 enzymatic cascade (Hershko & Ciechanover, 1998). E1-a
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Both meiotic COs and NCOs require DNA synthesis
2021-01-19

Both meiotic COs and NCOs require DNA synthesis, current data from sequencing also suggest that COs require more DNA synthesis than NCO 63., 64., 65.. However, analysis of the role of DNA synthesis in NCOs remains relatively uncharacterized. Emerging evidence points to a role for either Polδ or Polε
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The authentic PPase was purified from
2021-01-18

The authentic PPase was purified from B. subtilis as described previously [21], whereas the recombinant enzyme was purified to homogeneity from E. coli by a simplified procedure including only phenyl-Sepharose CL-4B column chromatography and DEAE-HPLC [21]. About 26 mg of pure enzyme was obtained fr
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Regarding the mechanism of action of CRF several studies hav
2021-01-18

Regarding the mechanism of action of CRF, several studies have shown that low doses of CRF may preferentially activate CRF1 receptors in glutamatergic projection neurons, serotoninergic neurons or glutamatergic collaterals in the medial prefrontal cortex (Vertes, 2004). Indeed, prosencephalic inacti
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br Results br Discussion br Experimental Procedures
2021-01-18

Results Discussion Experimental Procedures Author Contributions Acknowledgments Introduction Excitatory synaptic transmission within the brain is largely mediated by ionotropic glutamate receptors. At glutamatergic synapses, α-amino-3-hydroxy-5-methylisoxazole-4-proprionic Fesotero
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The majority of pro inflammatory cytokines are regulated by
2021-01-18

The majority of pro-inflammatory cytokines are regulated by NFκB, and recently, it has been found that p38 MAPK partly regulates NFκB-driven gene 449 by increasing the association of the basal transcriptional factor, TATA-binding protein, with the C terminus of p65 subunit of NFκB and increasing th
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br Third trimester crossing the threshold to
2021-01-18

Third trimester – crossing the threshold to immunocompetence Summary Regrettably, studies on the fetal immune system have yet to yield practical results. While it is becoming apparent that the fetal immune response plays a role in determining the outcome of congenital CMV infection, we still l
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RCT pathway plays a critical role in
2021-01-18

RCT pathway plays a critical role in the maintenance of cholesterol homeostasis by facilitating the cholesterol clearance and cholesterol efflux (Levinson & Wagner, 2015). In the process of RCT, ABCA1 and ABCG1 played as crucial regulators in cholesterol efflux (Yasuda et al., 2011). Compared with h
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As CP is a crucial
2021-01-18

As CP110 is a crucial player in centriole duplication, it is intriguing to ask whether centriole duplication would also be affected in the absence of the CP110-stabilizing effects of USP33. Li et al.[4] found that USP33 depletion did not inhibit normal centriole duplication through loss of centriole
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In light of the overall loss of activity and selectivity
2021-01-18

In light of the overall loss of activity and selectivity observed with this series of arylchromenone-4-ones bearing small -alkoxy substituents, we were pleased to identify a potent and relatively selective inhibitor , exhibiting IC values of 0.008μM and 0.07μM for DNA-PK and PI3Kα, respectively. The
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In contrast to G and G which are buried
2021-01-18

In e 64 sale to G468 and G469, which are buried (Fig. 7a), residues 470–476 are equivalent to the surface loop L12 present in the crystal structure of the LigI complex (Fig. 7b) [17]. The OBD of DNA ligases adopts at least two distinct orientations during the catalytic cycle. In the adenylation ste
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br Introduction Biocatalysis can be
2021-01-18

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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Collectively the results presented here provide new
2021-01-18

Collectively, the results presented here provide new insights into ligand binding, clustering, spatial distribution, and phosphorylation of DDR1b and DDR2 in response to soluble collagen I. As depicted in the cartoon of Scheme 1, we postulate a model in which the spatial distribution and assembly of
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The androgen receptor AR is a
2021-01-18

The androgen receptor (AR) is a steroid hormone receptor that plays a crucial role in the normal development of male reproductive tissues, and its high expression and/or relaxation of its regulation are strongly implicated in prostate cancer (PCa) [11]. Androgen binding induces conformational change
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