Final answer:
The myc gene/protein is a significant anti-apoptotic proto-oncogene that becomes an oncogene, potentially leading to B-cell lymphomas like Burkett's Lymphoma when mutated.
Step-by-step explanation:
The gene/protein in question is myc, which is a very important anti-apoptotic gene/protein and an oncogene that can cause B-cell lymphomas. Proto-oncogenes act as positive cell-cycle regulators and are involved in normal cell growth and division. However, when these proto-oncogenes are mutated, they can become oncogenes and thus contribute to the uncontrolled cell growth characteristic of cancer. The overexpression of oncogenes like myc can result in the transformation of normal B cells into cancerous cells. These cancerous cells may grow uncontrollably and form tumors, leading to conditions such as Burkett's Lymphoma, where patients might develop tumors that impact their ability to eat.