6447
These findings have suggested that JAK3 represents a pharmacological target to control certain lymphoid-derived diseases .
 protein: JAK3
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: JAK3 
Answer:
 protein: JAK3