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https://www.selleckchem.com/products/ly2606368.html ARS2 is a conserved protein centrally involved in both nuclear RNA productive and destructive processes. To map features of ARS2 promoting RNA decay, we utilized two different RNA reporters, one of which depends on direct ARS2 tethering for its degradation. In both cases, ARS2 triggers a degradation phenotype aided by its interaction with the poly(A) tail exosome targeting (PAXT) connection. Interestingly, C-terminal amino acids of ARS2, responsible for binding the RNA 5'cap binding complex (CBC), become dispensable when ARS2 is directly tethered to the reporter RNA. In contrast, the Zinc-finger (ZnF) domain of ARS2 is essential for the decay of both reporters and consistently co-immunoprecipitation analyses reveal a necessity of this domain for the interaction of ARS2 with the PAXT-associated RNA helicase MTR4. Taken together, our results map the domains of ARS2 underlying two essential properties of the protein its RNP targeting ability and its capacity to recruit the RNA decay machinery.Non-invasive X-ray computed tomography (XRCT) is increasingly used in rhizosphere research to visualize development of soil-root interfaces in situ. However, exposing living systems to X-rays can potentially impact their processes and metabolites. In order to evaluate these effects, we assessed the responses of rhizosphere processes 1 h and 24 h after a low X-ray exposure (0.81 Gy). Changes in root gene expression patterns occurred 1 h after exposure with down-regulation of cell wall-, lipid metabolism-, and cell stress-related genes, but no differences remained after 24 h. At either time point, XRCT did not affect either root antioxidative enzyme activities, or the composition of rhizosphere bacterial microbiome and microbial growth parameters. The potential activities of leucine aminopeptidase and phosphomonoesterase were lower at 1 h, but did not differ from the control 24 h after exposure. A time delay of 24 h after a low X-r

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