- The homodimer of prostate-specific membrane antigen is a functional target for cancer therapy. Schülke, N., Varlamova, O.A., Donovan, G.P., Ma, D., Gardner, J.P., Morrissey, D.M., Arrigale, R.R., Zhan, C., Chodera, A.J., Surowitz, K.G., Maddon, P.J., Heston, W.D., Olson, W.C. Proc. Natl. Acad. Sci. U.S.A. (2003)