酪蛋白激酶II是一种丝氨酸/苏氨酸蛋白激酶，可磷酸化酪蛋白等酸性蛋白质它参与多种细胞过程，包括细胞周期控制、凋亡和昼夜节律。激酶作为四聚体存在，由α、α素和两个β亚基组成。α亚基具有催化活性，而β亚基则经历自磷酸化。这个基因编码的蛋白质代表α亚单位已发现该基因编码不同蛋白质亚型的多个转录变体[由RefSeq提供，2018年4月]
Casein kinase II is a serine/threonine protein kinase that phosphorylates acidic proteins such as casein. It is involved in various cellular processes, including cell cycle control, apoptosis, and circadian rhythm. The kinase exists as a tetramer and is composed of an alpha, an alpha-prime, and two beta subunits. The alpha subunits contain the catalytic activity while the beta subunits undergo autophosphorylation. The protein encoded by this gene represents the alpha subunit. Multiple transcript variants encoding different protein isoforms have been found for this gene. [provided by RefSeq, Apr 2018]