14338
Resting T-cell nuclear extracts contained KBF1/p50 homodimer .
 protein: KBF1/p50 homodimer
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: KBF1/p50 homodimer 
Answer:
 protein: KBF1/p50 homodimer