instruction:
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.
question:
 By contrast , CIS failed to affect the IL - 9 response .
answer:
IL - 9


question:
 Furthermore , the rapid light - mediated increase of CPRF proteins was insensitive to transcriptional inhibitors , suggesting that a post - transcriptional mechanism controls CPRF accumulation .
answer:
CPRF proteins


question:
 METHODS : The prevalence of haemagglutination inhibiting ( HI ) antibodies to JE virus ( JEV ) , West Nile virus ( WNV ) and dengue - 2 virus ( DEN - 2 ) was detected by HI test and IgM antibody capture ELISA ( MAC ELISA ) was performed to determine recent infections with JE virus .
answer:

IgM antibody