6100
Studies with motheaten mice , which lack the SHP1 protein tyrosine phosphatase , indicate that this enzyme plays an important negative role in T cell antigen receptor ( TCR ) signaling .
 protein: SHP1; protein: tyrosine phosphatase; protein: T cell antigen receptor; protein: SHP1 protein; protein: TCR
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: SHP1, tyrosine phosphatase, T cell antigen receptor, SHP1 protein, TCR 
Answer:
 protein: SHP1; protein: tyrosine phosphatase; protein: T cell antigen receptor; protein: SHP1 protein; protein: TCR