501
Levels of the octamer , NF-kappa B ( p50-p65 heterodimer ), and AP-1 transcriptional factors are constitutively elevated in freshly isolated Ipr CD4-8- T cells , consistent with the activated phenotype of these cells.
 protein: p50-p65 heterodimer; protein: AP-1 transcriptional factors; cell line: Ipr CD4-8- T cells; protein: NF-kappa B; cell type: T cells; protein: AP-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: p50-p65 heterodimer, AP-1 transcriptional factors, Ipr CD4-8- T cells, NF-kappa B, T cells, AP-1 
Answer:
 protein: p50-p65 heterodimer; protein: AP-1 transcriptional factors; cell line: Ipr CD4-8- T cells; protein: NF-kappa B; cell type: T cells; protein: AP-1