974
The expression vector was cotransfected with the chloramphenicol acetyl transferase (CAT) reporter gene regulated by the thymidine kinase promoter containing GAL4 DNA binding sites into NIH 3T3 , 293 , K562 , and Jurkat cell lines .
 DNA: chloramphenicol acetyl transferase (CAT) reporter gene; cell line: NIH 3T3; protein: GAL4; cell line: 293; protein: thymidine kinase; protein: chloramphenicol acetyl transferase; DNA: thymidine kinase promoter; cell line: K562; DNA: GAL4 DNA binding sites; cell line: Jurkat cell lines
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: chloramphenicol acetyl transferase (CAT) reporter gene; cell line: NIH 3T3; protein: GAL4; cell line: 293; protein: thymidine kinase; protein: chloramphenicol acetyl transferase; DNA: thymidine kinase promoter; cell line: K562; DNA: GAL4 DNA binding sites; cell line: Jurkat cell lines