The U1 snRNP protein U1C and Helix H of U1 snRNA are critical for small molecule splicing modulator function
Zhiling Kuang, Brian Kosmyna, Xueni Li…·Rui Zhao
This study shows that U1C and Helix H of U1 snRNA are essential for branaplam's effect on weak 5 splice site recognition, while risdiplam requires additional factors for activity.