8097
Within a 135 - bp core homology region , the human HS12 enhancers are approximately 90 % identical to the murine homolog and include several motifs previously demonstrated to be important for function of the murine enhancer ; additional segments of high sequence conservation suggest the possibility of previously unrecognized functional motifs .
 human HS12 enhancers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 human HS12 enhancers