- DNA binding and transcriptional activation by the Ski oncoprotein mediated by interaction with NFI. Tarapore, P., Richmond, C., Zheng, G., Cohen, S.B., Kelder, B., Kopchick, J., Kruse, U., Sippel, A.E., Colmenares, C., Stavnezer, E. Nucleic Acids Res. (1997)