- Human homologue sequences to the Drosophila dishevelled segment-polarity gene are deleted in the DiGeorge syndrome. Pizzuti, A., Novelli, G., Mari, A., Ratti, A., Colosimo, A., Amati, F., Penso, D., Sangiuolo, F., Calabrese, G., Palka, G., Silani, V., Gennarelli, M., Mingarelli, R., Scarlato, G., Scambler, P., Dallapiccola, B. Am. J. Hum. Genet. (1996)