NR2F2 (Nuclear Receptor Subfamily 2 Group F Member 2): NR2F2 is a transcription factor, also known as COUP-TFII, which plays a crucial role in the development and functioning of various organs, including the heart and vascular system. It regulates genes involved in angiogenesis (formation of new blood vessels) and metabolic processes. Abnormal NR2F2 activity is linked to developmental disorders and certain cancers, where it can influence tumour growth and metastasis.