1541
Engagement of the T cell receptor for antigen activates phospholipase C resulting in an increase in intracellular free calcium concentration ( [ Ca2+ ]i ) and activation of protein kinase C ( PKC ).
 protein: phospholipase C; protein: PKC; protein: T cell receptor; protein: protein kinase C
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: phospholipase C, PKC, T cell receptor, protein kinase C 
Answer:
 protein: phospholipase C; protein: PKC; protein: T cell receptor; protein: protein kinase C