Seipelt, R. ., Zheng, B. ., Asuru, A. ., & Rymond, B. . (1999). U1 snRNA is cleaved by RNase III and processed through an Sm site-dependent pathway. Nucleic Acids Research, 27(2), 587-95. https://doi.org/10.1093/nar/27.2.587 (Original work published 1999)
