Proto-Oncogene Proteins c-cbl. CBL E3 Ubiquitin Protein Ligase . Proto-Oncogene Protein c-cbl . RING Finger Protein 55 . RNF55 Protein . c-cbl Proto-Oncogene Protein . Proto Oncogene Protein c cbl . Proto Oncogene Proteins c cbl . Proto-Oncogene Protein, c-cbl . Proto-Oncogene Protein, cbl . c cbl Proto Oncogene Protein . c-cbl, Proto-Oncogene Protein . c-cbl, Proto-Oncogene Proteins . cbl Proto Oncogene Protein . c-cbl Protein . cbl Proto-Oncogene Protein . 0.78