- SNEV is an evolutionarily conserved splicing factor whose oligomerization is necessary for spliceosome assembly. Grillari, J., Ajuh, P., Stadler, G., Löscher, M., Voglauer, R., Ernst, W., Chusainow, J., Eisenhaber, F., Pokar, M., Fortschegger, K., Grey, M., Lamond, A.I., Katinger, H. Nucleic Acids Res. (2005)