83
E2F-1 and a cyclin-like DNA repair enzyme , uracil-DNA glycosylase , provide evidence for an autoregulatory mechanism for transcription .
 uracil-DNA glycosylase, E2F-1, cyclin-like DNA repair enzyme
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:
 uracil-DNA glycosylase, E2F-1, cyclin-like DNA repair enzyme