1553
We have tested this proposal by carrying out circular dichroism ( CD ) and NMR experiments on the Skn domain and five truncated proteins .
 GENE: Skn domain
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: Skn domain