541
Mice transgenic for the human T cell leukemia virus ( HTLV-I ) Tax gene develop fibroblastic tumors that express NF-kappa B-inducible early genes .
 DNA: human T cell leukemia virus ( HTLV-I ) Tax gene; protein: Tax; DNA: NF-kappa B-inducible early genes
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:
 DNA: human T cell leukemia virus ( HTLV-I ) Tax gene; protein: Tax; DNA: NF-kappa B-inducible early genes