In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

Q:  Receptor cleavage by these and other endogenous enzymes may account for previous observations of ` ` abnormal ' ' receptors in cytosols from some leukemic specimens .

A: endogenous enzymes
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Q:  We found that leukemic LGL from 19 patients displayed high levels of activated STAT3 .

A: activated STAT3
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Q:  Gadd45gamma is also dispensable for IL - 2 - induced T - cell proliferation .

A:
IL - 2
****