8646
Cutting edge: dominant effect of Ile50Val variant of the human IL-4 receptor alpha-chain in IgE synthesis .
 protein: Ile50Val variant; protein: IgE; protein: human IL-4 receptor alpha-chain
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: Ile50Val variant, IgE, human IL-4 receptor alpha-chain 
Answer:
 protein: Ile50Val variant; protein: IgE; protein: human IL-4 receptor alpha-chain