ABTB1 (Ankyrin Repeat and BTB Domain Containing 1): ABTB1 is a protein that includes ankyrin repeats and a BTB (POZ) domain, suggesting a role in protein-protein interactions. It is involved in regulating transcription and may contribute to the development of certain cancers. Although its full range of functions is still under investigation, ABTB1 is associated with key cellular processes.