TGFBR2 (Transforming Growth Factor Beta Receptor 2): TGFBR2 is a gene that encodes a key component of the TGF-beta signaling pathway, which regulates cell growth, differentiation, and immune responses. Mutations in TGFBR2 are associated with hereditary conditions such as hereditary hemorrhagic telangiectasia (HHT) and may play a role in the development of certain cancers.