10478
Transient transfection studies demonstrate further that TCR -stimulated activation of the Ras signaling pathway is required for optimal activation of CD95 ligand .
 protein: Ras; protein: TCR; protein: CD95 ligand
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: Ras, TCR, CD95 ligand 
Answer:
 protein: Ras; protein: TCR; protein: CD95 ligand