GATA2 (GATA Binding Protein 2): GATA2 is a transcription factor critical for the regulation of genes involved in hematopoiesis and endothelial cell function. It plays an essential role in the development and maintenance of hematopoietic stem cells and the immune system. Mutations in GATA2 are associated with several hematologic disorders, including GATA2 deficiency, which can lead to immunodeficiency, myelodysplastic syndrome, and acute myeloid leukemia....