382
Maximal increase in IL-2 transcription was recorded with CHO-DR/ B7 / LFA-3 , suggesting a cooperative effect of B7 and LFA-3 at the transcriptional level.
 protein: LFA-3; protein: IL-2; protein: B7; protein: CHO-DR/ B7 / LFA-3; protein: B7; protein: LFA-3
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: LFA-3, IL-2, B7, CHO-DR/ B7 / LFA-3, B7, LFA-3 
Answer:
 protein: LFA-3; protein: IL-2; protein: B7; protein: CHO-DR/ B7 / LFA-3; protein: B7; protein: LFA-3