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A majority of growth factor receptors consists of receptor tyrosine kinases (RTKs). There are 3 dominant receptor types that are exclusive to research : the epidermal growth factor receptor, the neurotrophin receptor, and the insulin receptors.

Medical Relevance
Research in today’s society focus on growth factor receptors in order to pinpoint cancer treatment. Epidermal growth factor receptors are involved heavily with oncogene activity. Once growth factors bind to their receptor, a signal transduction pathway occurs within the cell to ensure the cell is working. However, in cancerous cells, the pathway might never turn on or turn off.