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.
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Question:  Reactive mesothelial cells , usually seen as exfoliated cells , were consistently strongly positive for alpha 1 - antichymotrypsin and more variably for alpha 1 - antitrypsin and lysozyme .

Answer: alpha 1


Question:  Previous studies have shown that the IME1 gene is required for sporulation and the expression of meiosis specific genes in Saccharomyces cerevisiae .

Answer: IME1 gene


Question:  Its phosphorylation strongly potentiates its ability to activate transcription of the c - fos promoter through a ternary complex assembled on the c - fos serum response element .

Answer:
c - fos