SRSF2 directly inhibits intron splicing to suppresses cassette exon inclusion

نویسندگان

  • Heegyum Moon
  • Sunghee Cho
  • Tiing Jen Loh
  • Ha Na Jang
  • Yongchao Liu
  • Namjeong Choi
  • Jagyeong Oh
  • Jiyeon Ha
  • Jianhua Zhou
  • Sungchan Cho
  • Dong-Eun Kim
  • Michael B. Ye
  • Xuexiu Zheng
  • Haihong Shen
چکیده

SRSF2, a Serine-Arginine rich (SR) protein, is a splicing activator that mediates exon inclusion and exclusion events equally well. Here we show SRSF2 directly suppresses intron splicing to suppress cassette exon inclusion in SMN premRNA. Through a serial mutagenesis, we demonstrate that a 10 nt RNA sequence surrounding the branch-point (BP), is important for SRSF2-mediated inhibition of cassette exon inclusion through directly interacting with SRSF2. We conclude that SRSF2 inhibits intron splicing to promote exon exclusion. [BMB Reports 2017; 50(8): 423-428].

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عنوان ژورنال:

دوره 50  شماره 

صفحات  -

تاریخ انتشار 2017