22306
A gel mobility shift assay revealed that purified NemR repressor bound to DNA was dissociated upon interaction with quinones and glyoxals , while their reduced forms were ineffective .
 quinones, glyoxals
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 quinones, glyoxals