2303
Nuclease probing and structure - directed mutagenesis revealed that the 105 - nt TE ( TE105 ) forms a cruciform secondary structure containing four helices connected by single - stranded regions .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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