該基因編碼一種最初被鑒定為甲狀腺特異性轉錄因子的蛋白質。編碼的蛋白質與甲狀腺球蛋白啟動子結合，調節甲狀腺特異基因的表達，但也被證明調節與形態發生有關的基因的表達。該基因的突變和缺失與良性遺傳性舞蹈病、舞蹈病、先天性甲狀腺功能減退和新生兒呼吸窘迫有關，并可能與甲狀腺癌有關。已發現該基因編碼不同亞型的多個轉錄變體。該基因與另一個在核糖體基因轉錄中起作用的基因轉錄終止因子1共享符號/別名“ttf1”。[由RefSeq提供，2014年2月]
This gene encodes a protein initially identified as a thyroid-specific transcription factor. The encoded protein binds to the thyroglobulin promoter and regulates the expression of thyroid-specific genes but has also been shown to regulate the expression of genes involved in morphogenesis. Mutations and deletions in this gene are associated with benign hereditary chorea, choreoathetosis, congenital hypothyroidism, and neonatal respiratory distress, and may be associated with thyroid cancer. Multiple transcript variants encoding different isoforms have been found for this gene. This gene shares the symbol/alias 'TTF1' with another gene, transcription termination factor 1, which plays a role in ribosomal gene transcription. [provided by RefSeq, Feb 2014]