CITED2 (Cbp/p300-Interacting Transactivator With Glu/Asp-Rich Carboxy-Terminal Domain 2): CITED2 is a transcriptional regulator that affects gene expression by interacting with multiple transcription factors. It plays a crucial role in embryonic development, including the formation of the heart and nervous system, and is involved in cellular responses to low oxygen levels (hypoxia). Dysregulation of CITED2 is associated with congenital defects and various developmental disorders.