5889
The data demonstrate that the T-cell antigen receptor -CD3 (TcR- CD3 ) complex is functionally linked to two different protein tyrosine kinase ( PTK ) modules with separate specific functions and that CD45 may be an important regulator of this coupling.
 protein: CD45; protein: -CD3; protein: CD3; protein: protein tyrosine kinase; protein: PTK; protein: -CD3 (TcR- CD3 ) complex
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: CD45, -CD3, CD3, protein tyrosine kinase, PTK, -CD3 (TcR- CD3 ) complex 
Answer:
 protein: CD45; protein: -CD3; protein: CD3; protein: protein tyrosine kinase; protein: PTK; protein: -CD3 (TcR- CD3 ) complex