- Genomic imprinting of PPP1R9A encoding neurabin I in skeletal muscle and extra-embryonic tissues. Nakabayashi, K., Makino, S., Minagawa, S., Smith, A.C., Bamforth, J.S., Stanier, P., Preece, M., Parker-Katiraee, L., Paton, T., Oshimura, M., Mill, P., Yoshikawa, Y., Hui, C.C., Monk, D., Moore, G.E., Scherer, S.W. J. Med. Genet. (2004)