@article{CTT100560541, author = {Tomoko Nishiyama and Norio Yoshizaki and Takeo Kishimoto and Keita Ohsumi}, title = {Transient activation of calcineurin is essential to initiate embryonic development in Xenopus laevis}, journal = {Nature}, year = 2007, } @article{CTT100560543, author = {Tomoko Nishiyama and Keita Ohsumi and Takeo Kishimoto}, title = {Phosphorylation of Erp1 by p90rsk is required for cytostatic factor arrest in Xenopus laevis eggs}, journal = {Nature}, year = 2007, }