Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Ancar, Rachel, once mentioned the application of 1722-12-9, Name is 2-Chloropyrimidine, molecular formula is C4H3ClN2, molecular weight is 114.53, MDL number is MFCD00006060, category is pyrimidines. Now introduce a scientific discovery about this category, Category: pyrimidines.
Physiologic RNA targets and refined sequence specificity of coronavirus EndoU
Coronavirus EndoU inhibits dsRNA-activated antiviral responses; however, the physiologic RNA substrates of EndoU are unknown. In this study, we used mouse hepatitis virus (MHV)-infected bone marrow-derived macrophage (BMM) and cyclic phosphate cDNA sequencing to identify the RNA targets of EndoU. EndoU targeted viral RNA, cleaving the 3′ side of pyrimidines with a strong preference for U down arrow A and C down arrow A sequences (endoY down arrow A). EndoU-dependent cleavage was detected in every region of MHV RNA, from the 5′ NTR to the 3′ NTR, including transcriptional regulatory sequences (TRS). Cleavage at two CA dinucleotides immediately adjacent to the MHV poly(A) tail suggests a mechanism to suppress negative-strand RNA synthesis and the accumulation of viral dsRNA. MHV with EndoU (EndoU(mut)) or 2′-5′ phosphodiesterase (PDEmut) mutations provoked the activation of RNase L in BMM, with corresponding cleavage of RNAs by RNase L. The physiologic targets of EndoU are viral RNA templates required for negative-strand RNA synthesis and dsRNA accumulation. Coronavirus EndoU cleaves U down arrow A and C down arrow A sequences (endoY down arrow A) within viral (+) strand RNA to evade dsRNA-activated host responses.
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Reference:
Pyrimidine | C4H4N2 – PubChem,
,Pyrimidine – Wikipedia