However, given that the EBNA-LP and LMP1 single stain studies in the P3HR1 virus-infected animals suggest that EBNA-LP and LMP1 are often expressed in geographically different regions of the tumors, we next performed EBNA-LP/LMP1 co-staining studies to determine if EBNA-LP and LMP1 are expressed in the same cells, or separate cells, in P3HR1 virus-infected lymphomas. The gene discussed is PDLIM7; the disease is lymphoma.