- Biochemical identification of Xenopus Pumilio as a sequence-specific cyclin B1 mRNA-binding protein that physically interacts with a Nanos homolog, Xcat-2, and a cytoplasmic polyadenylation element-binding protein. Nakahata, S., Katsu, Y., Mita, K., Inoue, K., Nagahama, Y., Yamashita, M. J. Biol. Chem. (2001)