- Ssdp proteins interact with the LIM-domain-binding protein Ldb1 to regulate development. Chen, L., Segal, D., Hukriede, N.A., Podtelejnikov, A.V., Bayarsaihan, D., Kennison, J.A., Ogryzko, V.V., Dawid, I.B., Westphal, H. Proc. Natl. Acad. Sci. U.S.A. (2002)