8475
Thus , Esigma54 promoters are responsive to CRP , a protein unrelated to sigma54 activators , and the repression exerted is the direct result of an interaction between Esigma54 and the CRP - cAMP complex .
 Esigma54 promoters, CRP, sigma54 activators, Esigma54, CRP - cAMP complex
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Esigma54 promoters, CRP, sigma54 activators, Esigma54, CRP - cAMP complex