6579
By comparing the abundances of many yeast transcripts in isogenic wild - type and paf1 mutant strains , we have identified genes whose expression is affected by PAF1 .
 paf1 mutant, PAF1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 paf1 mutant, PAF1