- The genomic structure of the gene defective in Usher syndrome type Ib (MYO7A). Kelley, P.M., Weston, M.D., Chen, Z.Y., Orten, D.J., Hasson, T., Overbeck, L.D., Pinnt, J., Talmadge, C.B., Ing, P., Mooseker, M.S., Corey, D., Sumegi, J., Kimberling, W.J. Genomics (1997)