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Class I PI 3-kinases are a subgroup of the enzyme family, phosphoinositide 3-kinase that possess a common protein domain structure, substrate specificity, and method of activation. Class I PI 3-kinases are further divided into two subclasses, class IA PI 3-kinases and class IB PI 3-kinases. ==Class IA PI 3-kinases== Class IA PI 3-kinases are activated by receptor tyrosine kinases (RTKs). There are three catalytic subunits that are classified as class IA PI 3-kinases: *p110α *p110β *p110δ *p110γ There are currently five regulatory subunits that are known to associate with class IA PI 3-kinases catalytic subunits: *p85α and p85β *p55α and p55γ *p50α 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Class I PI 3-kinases」の詳細全文を読む スポンサード リンク
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