DeltaRex-G is a tumor targeted, murine leukemia virus (MLV)-based retrovector 1) displaying a Signature-pan-collagen binding decapeptide on its gp70 envelope protein and 2) encoding a truncated N-terminal deletion mutant construct of the human CCNG1 oncogene under the control of a hybrid LTR/CMV promoter (Figure 1). Here, EMB is linked to neoplasm.