5058
As the predicted protein is very similar to the yeast transcriptional regulator Rpd3p , these results support a role for histone deacetylase as a key regulator of eukaryotic transcription .
 yeast transcriptional regulator, Rpd3p, histone deacetylase, histone
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 yeast transcriptional regulator, Rpd3p, histone deacetylase, histone