Insulin-sensitive phosphorylation of serine 1293/1294 on the human insulin receptor by a tightly associated serine kinase

In these studies we demonstrate that insulin stimulates both tyrosine and serine phosphorylation of the insulin receptor after its partial purification on wheat germ-agarose, and after affinity purification on insulin-agarose. Analysis of the serine phosphate incorporated into partially purified or...

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