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Although activated in T cell leukemias , expression of SCL and LYL-1 is low or undetectable in normal T cell populations .
 protein: SCL; protein: LYL-1; cell type: normal T cell populations
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: SCL; protein: LYL-1; cell type: normal T cell populations