12319
Constitutive association of JAK1 and STAT5 in pro-B cells is dissolved by interleukin-4 -induced tyrosine phosphorylation of both proteins.
 protein: interleukin-4; protein: JAK1; protein: STAT5; cell type: pro-B 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: interleukin-4, JAK1, STAT5, pro-B cells 
Answer:
 protein: interleukin-4; protein: JAK1; protein: STAT5; cell type: pro-B cells