19128
Structure of dipeptides having N - terminal selenocysteine residues : a DFT study in gas and aqueous phase .
 Chemical: dipeptides; Chemical: N; Chemical: selenocysteine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: dipeptides; Chemical: N; Chemical: selenocysteine