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Gene Review

IGF1R  -  insulin-like growth factor 1 receptor

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High impact information on IGF1R

  • The presence of insulin and IGF-1 receptor binding site subtypes is not correlated with structurally different receptor binding subunits since only a single population of binding subunits is observed (apparent molecular weight of 125 +/- 2.7 kD) in embryonic and adult sclera.(ABSTRACT TRUNCATED AT 250 WORDS)[1]
  • In mammalian cells, the insulin receptor substrate 1 protein (IRS-1) is a specific substrate for insulin and IGF-1 receptor tyrosine kinases which is involved in mediating metabolic and mitogenic actions of insulin and IGFs [2].
  • This is the first description of a common molecular mechanism, involving the MAPK ERK1/2, by which LHRH-R and IGF-1-R induce LH secretion in ovine pituitary cells [3].
  • Insulin and insulin-like growth factor-1 (IGF-1) both stimulated AIB uptake, but the higher concentrations of insulin necessary to increase uptake to a level comparable to that of IGF-1 stimulation suggested that insulin could be acting through the IGF-1 receptor [4].


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