Posts

Showing posts from October, 2022

MYC Oncogene

Image
MYC Oncogene The MYC gene encodes a phosphoprotein that plays a role in a variety of cellular processes, including the  cell cycle, cell growth, apoptosis, and cellular metabolism . The gene is located in the long q arm of  chromosome 8  and in the  nucleoplasm  of a cell. It belongs to the basic helix-loop-helix zipper class of transcription factors functioning in the developmental processes. It enforces DNA replication and entry into the S phase of the cell cycle by the expression of  cyclins  and represses kinases inhibitors  p21 and p27 . Through checkpoints, it is restrained from causing tumorigenesis through proliferative arrest, apoptosis, and cell cycle arrest (or cellular senescence). In human cancer, it is frequently observed to be highly amplified, being one of the most amplified oncogenes compared to others. Translocations involving the MYC gene are associated with Burkitt lymphoma , where cancer starts in immune cells called B-cells . The mutation results in the constituti