963
This protein-DNA complex comigrated with the complex obtained with the purified human p65 NF-kappa B subunit and binding was inhibited by I kappa B-alpha and -beta proteins .
 protein: -beta proteins; protein: protein-DNA complex; protein: I kappa B-alpha; protein: purified human p65 NF-kappa B subunit
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: -beta proteins, protein-DNA complex, I kappa B-alpha, purified human p65 NF-kappa B subunit 
Answer:
 protein: -beta proteins; protein: protein-DNA complex; protein: I kappa B-alpha; protein: purified human p65 NF-kappa B subunit