3018
The predicted amino acid sequence of the amino-terminal portion of Sp140 was similar to Sp100 , a previously identified NB protein .
 protein: amino acid sequence; protein: amino-terminal portion; protein: NB protein; protein: Sp100; protein: Sp140
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 acid sequence, amino-terminal portion, NB protein, Sp100, Sp140 
Answer:
 protein: amino acid sequence; protein: amino-terminal portion; protein: NB protein; protein: Sp100; protein: Sp140