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S1 nuclease analysis of RNA from chemically induced B95 - 8 cells and from Vero cells cotransfected with NotI repeat promoter - CAT and Z showed that Z transactivation increased the level of correctly initiated , stable RNA transcripts .
 S1 nuclease, NotI repeat promoter, CAT, Z, Z
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 S1 nuclease, NotI repeat promoter, CAT, Z, Z