- The cross-pathway control gene of Neurospora crassa, cpc-1, encodes a protein similar to GCN4 of yeast and the DNA-binding domain of the oncogene v-jun-encoded protein. Paluh, J.L., Orbach, M.J., Legerton, T.L., Yanofsky, C. Proc. Natl. Acad. Sci. U.S.A. (1988)