[C.elegansII] Mutation defined by hcDf1, hDf13; hermaphrodite brood size 3, abnormal spermatogenesis with ribosomes attaching to fibrous body-membranous organelle. Cloned: 0.56 kb transcript, encodes 142 aa novel predicted protein, highly charged, Ser and Thr rich. [L'Hernault et al. 1993; SL]