sentences:  Gag-onc fusion protein
  
  The gag-onc fusion protein is a general term for a fusion protein formed from a group-specific antigen ('gag') gene and that of an oncogene ('onc'), a gene that plays a role in the development of a cancer.The name is also written as Gag-v-Onc, with "v" indicating that the Onc sequence resides in a viral genome.