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.

[EX Q]:  This suggests the association of E2 - receptor expression with control of growth rather than cell maturation .
[EX A]: E2 - receptor

[EX Q]:  We found that leukemic LGL from 19 patients displayed high levels of activated STAT3 .
[EX A]: activated STAT3

[EX Q]:  Ultrastructural studies demonstrated sequential changes in the cytoplasm , including swelling of mitochondria and cytoplasmic decompartmentalizati , followed by loss of surface microvilli with the appearance of ` ` holes ' ' in the cell membrane , and subsequent condensation of nuclear chromatin .
[EX A]:
nuclear chromatin