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By synthesizing and testing a series of alanine point - mutated cyclic peptides , we identified which amino acid was important for the inhibition of the phospholamban function .
 Chemical: alanine; Chemical: amino acid
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: alanine; Chemical: amino acid