724
The rex gene encodes two protein products, p27rex /p21rex and p26rex /p24rex in HTLV-I and HTLV-II , respectively.
 protein: p26rex /p24rex; protein: p26rex; protein: p27rex /p21rex; protein: /p21rex; protein: p27rex; DNA: 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:
 protein: p26rex /p24rex; protein: p26rex; protein: p27rex /p21rex; protein: /p21rex; protein: p27rex; DNA: rex gene; protein: /p24rex