- Topoisomerase I and II consensus sequences in a 17-kb deletion junction of the COL4A5 and COL4A6 genes and immunohistochemical analysis of esophageal leiomyomatosis associated with Alport syndrome. Ueki, Y., Naito, I., Oohashi, T., Sugimoto, M., Seki, T., Yoshioka, H., Sado, Y., Sato, H., Sawai, T., Sasaki, F., Matsuoka, M., Fukuda, S., Ninomiya, Y. Am. J. Hum. Genet. (1998)