12648
Also, gel mobility shift analyses using specific antiserum revealed decrease in the DNA-binding activity of an insulin gene transcription factor , PDX-1/IPF1/STF-1 .
 protein: PDX-1/IPF1/STF-1; protein: insulin gene transcription factor
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: PDX-1/IPF1/STF-1, insulin gene transcription factor 
Answer:
 protein: PDX-1/IPF1/STF-1; protein: insulin gene transcription factor