7085
The accessibility of the D171C ( ( 4 . 60 ) ) and P170C ( ( 4 . 59 ) ) residues suggests that they are oriented towards a water - accessible area of the binding pocket of CXCR4 .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None