459
Both PMA and the combination of NECA and forskolin acted together either to increase ( c-Fos ) or decrease ( Jun ) protein levels as well as increasing AP-1 binding , as judged by gel-shift assay , and AP-1 transcriptional activity .
 protein: AP-1; protein: AP-1; protein: Jun; protein: c-Fos
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:
 protein: AP-1; protein: AP-1; protein: Jun; protein: c-Fos