Updated project metadata. Cbl (Casitas B-lineage lymphoma) is a prominent post-translational regulator of protein tyrosine kinases (PTKs) that targets activated receptors for ubiquitination-mediated degradation. However, mutations within its E3 ubiquitin ligase activity rendering RING domain are often not sufficient to induce transformation. Rather, a conserved residue (Y371) within the linker helix region (LHR) of Cbl has been a mutational hotspot in myeloproliferative diseases. Interestingly, phosphorylation of Y371 is a prerequisite for Cbl’s ability to ubiquitinate PTKs. We have previously shown that Y371 mutations affect the conformation of Cbl that can be related to its transformation potential. We wanted to investigate for any additional advantage that the Cbl-Y371 mutants could gain over their wild-type counterpart so as to explain their oncogenicity. In our current study, we utilized CBL-70Z, a well-characterized oncogenic CBL mutant lacking residues 366-382 that behave similar to the prevalent MDS/MPN CBL mutants, as an example to explore differences in interactomes between Wild type CBl and CBL 70Z. Any divergent interacting abilities between the two can be used to decipher the mechanism by which the mutants elicit oncogenic transformation.