磷酸肌醇3激酶（pi3ks）是肌醇磷脂的磷酸化產物，參與免疫應答。該基因編碼的蛋白質是PI3K的I類催化亞單位，與其他I類催化亞單位（p110αp110β和p110δ）一樣，編碼蛋白結合p85調節亞單位形成pi3k，該基因位于先前在髓性白血病中發現的第7號染色體的一個普遍缺失片段。已經發現了一些編碼相同蛋白質的轉錄變體。[由RefSeq提供，2015年6月]
Phosphoinositide 3-kinases (PI3Ks) phosphorylate inositol lipids and are involved in the immune response. The protein encoded by this gene is a class I catalytic subunit of PI3K. Like other class I catalytic subunits (p110-alpha p110-beta, and p110-delta), the encoded protein binds a p85 regulatory subunit to form PI3K. This gene is located in a commonly deleted segment of chromosome 7 previously identified in myeloid leukemias. Several transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jun 2015]