Department of Biochemistry and Biophysics, School of Medicine and Dentistry, University of Rochester, Rochester, New York 14642, USA; Center for RNA Biology, University of Rochester, Rochester, New York 14642, USA.
Genes Dev. 2016 Mar 1;30(5):487-8. doi: 10.1101/gad.278937.116.
How does a mammalian cell determine when newly synthesized mRNAs are fully processed and appropriate for nuclear export? Müller-McNicoll and colleagues (pp. 553-566) expand on mechanisms known to be mediated by nuclear export factor 1 (NXF1) by describing SR proteins as NXF1 adaptors that flag alternatively spliced and polyadenylated mRNA isoforms as cargo ready for the cytoplasm.
哺乳动物细胞如何确定新合成的 mRNA 何时完全加工并适合核输出?Müller-McNicoll 及其同事(第 553-566 页)通过描述剪接因子(SR 蛋白)作为 NXF1 衔接子,将其作为标记具有不同剪接方式和多聚腺苷酸化的 mRNA 异构体的货物,使其准备好进入细胞质,从而扩展了已知由核输出因子 1 (NXF1) 介导的机制。