6444
Tyrphostin AG-490 inhibits cytokine-mediated JAK3 /STAT5a/b signal transduction and cellular proliferation of antigen-activated human T cells .
 protein: /STAT5a/b; protein: JAK3; cell type: T cells
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: /STAT5a/b, JAK3, T cells 
Answer:
 protein: /STAT5a/b; protein: JAK3; cell type: T cells