BTG1 (B-cell Translocation Gene 1): BTG1 is a gene with various roles within the cell, primarily involved in regulating the cell cycle and cellular differentiation. It functions as a tumour suppressor gene in specific contexts, helping to control cell growth and proliferation. In addition to its tumour-suppressive roles, BTG1 is also implicated in several other cellular processes, making it a significant focus in cancer research and developmental biology.