14317
The emergence of nuclear binding proteins was investigated using interleukin-2 sequence specific oligonucleotide probes in the electrophoretic mobility shift assay .
 protein: interleukin-2; DNA: interleukin-2 sequence specific oligonucleotide probes; protein: nuclear binding proteins
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: interleukin-2, interleukin-2 sequence specific oligonucleotide probes, nuclear binding proteins 
Answer:
 protein: interleukin-2; DNA: interleukin-2 sequence specific oligonucleotide probes; protein: nuclear binding proteins