7173
In addition , a comparison of the hCHLR gene sequences with available databases indicates that a large portion of these genes , including exons encoding two functional domains of the carboxyl - terminal region of these proteins , has been duplicated as part of a larger human telomeric repeat sequence found on many human chromosomes .
 hCHLR gene sequences
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 hCHLR gene sequences