The proto-oncogene can become an oncogene by a relatively small modification of its original function. There are three basic activation types: *A mutation within a proto-oncogene can cause a change in the protein structure, causing – an increase in protein (enzyme) activity – a loss of regulation * An increase in protein concentration, caused by [...]
A proto-oncogene is a normal gene that can become an oncogene due to mutations or increased expression. Proto-oncogenes code for proteins that help to regulate cell growth and differentiation. Proto-oncogenes are often involved in signal transduction and execution of mitogenic signals, usually through their protein products. Upon activation, a proto-oncogene (or its product) becomes a [...]
1. Oncogene: Oncogenes are specific base sequences present in the genome of Oncoviruses (e.g. Provirus) that can code for Oncoproteins responsible for production of cancer. 2. Protooncogene: Protooncogenes are the homologous base sequences of oncogenic sequences. They have been discovered from the chromosomal materials of normal animals like Birds, Rodents, Primate and even human beings. [...]
