11070
Human T cell lymphotropic virus type I ( HTLV-I ) encodes the transactivator protein , Tax , which facilitates viral transcription from three 21 bp repeated elements within the U3 region of the long terminal repeat ( LTR ).
 DNA: LTR; protein: transactivator protein; DNA: 21 bp repeated elements; DNA: U3 region; protein: Tax; DNA: long terminal repeat
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: LTR, transactivator protein, 21 bp repeated elements, U3 region, Tax, long terminal repeat 
Answer:
 DNA: LTR; protein: transactivator protein; DNA: 21 bp repeated elements; DNA: U3 region; protein: Tax; DNA: long terminal repeat