MYC and Burkitt lymphoma: Immunoblot analyses of tumor proteins revealed that lymphomas infected with ΔEBNA2 + Myc have high level Myc expression (similar to that in the Akata human BL cell line) and turn off expression of the EBV latent LMP1 protein in most tumors (Fig 3A), as well as expression of the EBV latent LMP2A protein (S1A Fig).