13341
The 271C --> T substitution represents a considerable change in chemical nature ( Arg91 --> Cys ), one which may affect the antigenic determinants of DARC , and thus be of clinical significance.
 ( protein: DARC, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: DARC, None) 