The NKX2-1 gene is located on chromosome 14 at 14q13.3 and encodes the NK2 homeobox 1 protein, a transcription factor that binds and activates thyroid specific genes. NKX2-1 was first reported in relation to autosomal dominant NKX2-1 related choreoathetosis and congenital hypothyroidism with or without pulmonary dysfunction in 1998. The disease is MONDO_0100520 (NKX2-1 related choreoathetosis and congenital hypothyroidism with or without pulmonary dysfunction).