genes which have the capacity if expressed to cause tumour formation.
Genes which can potentially induce neoplastic transformation. They include genes for growth factors, growth factor receptors, protein kinases, signal transducers, nuclear phosphoproteins, and transcription factors. When these genes are constitutively expressed after structural and/or regulatory changes, uncontrolled cell proliferation may result. V...
Genes associated with cancer
genes that, when altered by environmental factors or viruses, can cause abnormal cell growth 
Genes that can activate cell division in cells that normally do not divide or do so only slowly. A gene that when over-expressed leads to cancer, but which normally functions in cell division.
Genes which promote the normal division of cells.