NCOA4（nuclear receptor coactivator 4），癌症关联基因，基因ID：8031，这个基因编码一个雄激素受体辅活化子。编码蛋白以配体依赖的方式与雄激素受体相互作用以增强其转录活性。该基因与ret酪氨酸激酶基因（也位于10号染色体上）之间的染色体易位与甲状腺乳头状癌有关。另外，已经描述了剪接转录变体。假基因存在于4、5、10和14号染色体上。[由RefSeq提供，2009年2月]This gene encodes an androgen receptor coactivator. The encoded protein interacts with the androgen receptor in a ligand-dependent manner to enhance its transcriptional activity. Chromosomal translocations between this gene and the ret tyrosine kinase gene， also located on chromosome 10， have been associated with papillary thyroid carcinoma. Alternatively spliced transcript variants have been described. Pseudogenes are present on chromosomes 4， 5， 10， and 14. [provided by RefSeq， Feb 2009]。