6. Which of the following would be an immediate result of growth factor binding to its receptor?
(A)adenylyl cyclase activity
(B)ATPase activity
(C)phospholipase activity
(D) protein kinase activity
(E)protein phosphatase activity
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統計: A(19), B(17), C(10), D(83), E(18) #938801
統計: A(19), B(17), C(10), D(83), E(18) #938801
詳解 (共 2 筆)
#6529255
生長因子(growth factor)大多是「受體酪氨酸激酶 (RTK)」的配體。
當 growth factor 綁定 RTK,受體的酪氨酸部分會 自己磷酸化(autophosphorylation),就是 kinase 活動 → 馬上啟動訊號。kinase → 直接「加磷酸」,是開啟下游訊號的第一步。
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