該基因編碼KIT位點編碼的酪氨酸激酶受體配體這種配體是一種多效性因子，在子宮生殖細胞、神經細胞發育和造血中起作用，所有這些都被認為反映了細胞遷移的作用在成人中，它的功能是多方面的，而主要是以它在造血方面的持續需求而聞名。已經發現了兩個編碼不同亞型的轉錄變體。[由RefSeq提供，2008年7月]
This gene encodes the ligand of the tyrosine-kinase receptor encoded by the KIT locus. This ligand is a pleiotropic factor that acts in utero in germ cell and neural cell development, and hematopoiesis, all believed to reflect a role in cell migration. In adults, it functions pleiotropically, while mostly noted for its continued requirement in hematopoiesis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]