4114
An amino-terminal fragment of OCA-B binds the octamer site in the absence of a POU domain with the same sequence specificity.
 protein: amino-terminal fragment; DNA: octamer site; DNA: POU domain; protein: OCA-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: amino-terminal fragment, octamer site, POU domain, OCA-B 
Answer:
 protein: amino-terminal fragment; DNA: octamer site; DNA: POU domain; protein: OCA-B