8257
Unlike the proposed role of Cbl as a negative regulator, our results suggest that the Cbl homologue Cbl -b has a positive role in T-cell signaling , most likely via a direct interaction with the upstream kinase Zap-70 .
 protein: Cbl -b; protein: upstream kinase; protein: Cbl; protein: Zap-70; protein: Cbl; protein: Cbl
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: Cbl -b, upstream kinase, Cbl, Zap-70, Cbl, Cbl 
Answer:
 protein: Cbl -b; protein: upstream kinase; protein: Cbl; protein: Zap-70; protein: Cbl; protein: Cbl