5047
To identify cellular proteins binding to TRE-1 in a Tax -dependent manner , this strain was also used to screen a library of human cDNAs fused to GAD .
 protein: Tax; DNA: human cDNAs; protein: GAD; protein: cellular proteins; DNA: TRE-1
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: Tax, human cDNAs, GAD, cellular proteins, TRE-1 
Answer:
 protein: Tax; DNA: human cDNAs; protein: GAD; protein: cellular proteins; DNA: TRE-1