- A missense mutation in the SH3BP2 gene on chromosome 4p16.3 found in a case of nonfamilial cherubism. Imai, Y., Kanno, K., Moriya, T., Kayano, S., Seino, H., Matsubara, Y., Yamada, A. The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association. (2003)