The Drosophila RING-H2 protein Roc1a is involved in recognition and processing of the Hh signal transducer Ci by the SCF E3 Ubiquitin Ligase. - Noureddine, M.A.; Donaldson, T.D.; Thacker, S.A.; Duronio, R.J. (Program and Abstracts. 43rd Annual Drosophila Research Conference, San Diego, 2002, 2002)