13777
Ro 09-2210 was also able to inhibit phorbol ester / ionomycin -induced activation of AP1 with IC50 = <10 nM.
 protein: AP1
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: AP1 
Answer:
 protein: AP1