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:  NFAT expression was determined by using immunoprecipitation and Western blot analysis , DNA - binding assays , and RT - PCR analysis of eosinophil mRNA .

A: eosinophil mRNA
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Q:  Friend of GATA ( FOG ) proteins regulate GATA factor - activated gene transcription .

A: GATA factor
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Q:  As immunoglobulin transcription is mainly regulated by the B - cell transcription factors Oct2 and BOB . 1 / OBF . 1 , we analyzed 35 cases of LPHD , 32 cases of cHD , and 2 Hodgkin disease cell lines for the expression of these transcription factors and also in parallel for immunoglobulin expression .

A:
transcription factors
****