10293
It contains binding sites for several transcription factors , for example : ( i ) a well - characterized binding site for rel / NF - kappaB transcription factors in its 3 ' - end ( the H2TF1 or kappaB1 element ) , ( ii ) a second kappaB site ( the kappaB2 element ) , which is located immediately adjacent 5 ' to the H2TF1 element and which is recognized by p65 / relA in the human HLA system , and ( iii ) an AP - 1 / ATF recognition sequence in the 5 ' end ( EnA - TRE ) .
 rel, NF - kappaB, H2TF1, kappaB1 element, kappaB site, kappaB2 element, H2TF1 element, p65, relA, human HLA, AP - 1, ATF, EnA - TRE
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 rel, NF - kappaB, H2TF1, kappaB1 element, kappaB site, kappaB2 element, H2TF1 element, p65, relA, human HLA, AP - 1, ATF, EnA - TRE