9120
However , changing the half - site to the consensus sequence AGGTCA ( IRper - 1 ) increased binding of AaEcR . AaUSP 10 - fold over IRhsp - 1 and , at the same time , reduced the stringency of the spacer length requirement , with IRper - 0 to IRper - 5 showing detectable binding .
 AaEcR . AaUSP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 AaEcR . AaUSP