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:  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 .

A: nuclear chromatin
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Q:  fNF - E2 mRNA was found to be more abundant in erythroid cells than megakaryocytic cells at day 7 of culture .

A: fNF - E2
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Q:  In this study it was found that SDF - 1 , unlike TPO , does not stimulate alpha ( IIb ) beta ( 3 ) ( + ) cell proliferation or differentiation or have an antiapoptotic effect .

A:
SDF - 1
****