1. A. Matsumine, A. Ogai, K. Satoh, G.-H. Baeg, T. Akiyama, Department of Oncogene Research, Institute for Microbial Diseases, Osaka University, Suita, Osaka 565, Japan.
2. T. Senda, T. Kawahara, S. Kobayashi, Department of Anatomy I, Nagoya University School of Medicine, Nagoya, Aichi 466, Japan.
3. N. Okumura and M. Okada, Division of Protein Metabolism, Institute for Protein Research, Osaka University, Suita, Osaka 565, Japan.
4. K. Toyoshima, The Center for Adult Diseases, Osaka 537, Japan.