101
One HIV-1 variant was detected containing an additional binding site for the transcription factor Sp1 .
 protein: Sp1
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: Sp1 
Answer:
 protein: Sp1