11769
Sequence comparison and binding studies of the 18 - bp MOK2 - binding sites present in intron 2 of human , bovine , and mouse IRBP genes show that the 3 ' - half sequence is the essential core element for MOK2 binding .
 18 - bp MOK2 - binding sites, mouse IRBP genes, MOK2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 18 - bp MOK2 - binding sites, mouse IRBP genes, MOK2