10750
Amino acid sequence comparison shows that CHEMR1 is 84% identical to human CCR-4 , indicating that CHEMR1 is likely to be a mouse CCR-4 .
 CCR-4, CHEMR1, mouse CCR-4, CCR-4, human CCR-4, CHEMR1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 CCR-4, CHEMR1, mouse CCR-4, CCR-4, human CCR-4, CHEMR1