胰岛素受体底物2 (IRS - 2)是胰岛素受体激酶的主要底物之一(1)。

Insulin receptor substrate 2 (IRS-2) is one of the major substrates of the insulin receptor kinase (1).

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目的：寻找猪血小板中蛋白激酶CK2可能的天然底物。

Objective:To search for natural substrates of protein kinase CK2 in pig platelets.

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方法通过外源性底物磷酸化方法，测定了16 例正常皮肤、22 例银屑病皮损、5 例皮肤鳞癌组织角质形成细胞膜酪氨酸蛋白激酶（ T P K） 的活性。

Method The activity of tyrosine protein kinase(TPK) was determined by using exogenic substrates in 16 samples of normal skin, 22 psoriatic lesion and 5 skin squamous carcinoma.

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