721
The internal methionine codons of human T-cell leukemia virus type II rex gene are not required for p24rex production or virus replication and transformation .
 DNA: human T-cell leukemia virus type II rex gene; protein: p24rex
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 type II rex gene; protein: p24rex