14854
Remarkably, we observed that these samples displayed a persistent expression of the c-fos protooncogene , associated to an increased AP-1 DNA-binding activity, whereas no variations of CREB or NF-kB were detected.
 protein: AP-1; protein: NF-kB; protein: CREB; DNA: c-fos protooncogene
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: AP-1, NF-kB, CREB, c-fos protooncogene 
Answer:
 protein: AP-1; protein: NF-kB; protein: CREB; DNA: c-fos protooncogene