1318
We therefore investigated the effects of cysteine and related thiols on HIV-1 replication and NF-kappa B expression .
 protein: NF-kappa B
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: NF-kappa B 
Answer:
 protein: NF-kappa B