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