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:  Studies to date have identified elements 5 ' to the IL - 3 coding sequences that regulate its transcription , but the sequences that confer T cell - specific expression remain to be clearly defined .

Answer: IL - 3


Question:  These cells were examined for ER mRNA by reverse transcription nested polymerase chain reaction .

Answer: ER mRNA


Question:  DNA damage plays a crucial role in these immunomodulatory effects of ultraviolet B , as impaired repair of ultraviolet - B - induced DNA damage has been shown to cause suppression of cellular immunity .

Answer:
- B