- Characterization of a cDNA encoding a 34-kDa Purkinje neuron protein recognized by sera from patients with paraneoplastic cerebellar degeneration. Furneaux, H.M., Dropcho, E.J., Barbut, D., Chen, Y.T., Rosenblum, M.K., Old, L.J., Posner, J.B. Proc. Natl. Acad. Sci. U.S.A. (1989)