4359
Rather, tyrosine phosphorylation was shown to be directly involved in mediating CD40 -dependent signals .
 protein: CD40
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: CD40 
Answer:
 protein: CD40