This article waslast modified on 10 July 2017.
Gene in a virus that is able to produce a malignant change in an infected cell; several have been identified in human tissue as potential causes of cancer. Researchers are attempting to isolate anti-oncogenes that suppress tumours and may be used in the treatment of cancer. Certain oncogenes may play a role in normal growth and development; if they are damaged or mutated, cancer may result.