1087
Thus, the substitution of the underlined A residue to a C within the GGGATTTCACC motif abolishes its T cell-restricted activity and leads to its functioning in both El4 cells and HeLa cells .
 cell line: El4 cells; cell line: HeLa cells; DNA: GGGATTTCACC motif
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell line: El4 cells; cell line: HeLa cells; DNA: GGGATTTCACC motif