20993
While the antiendotoxic peptide GKY25 ( GKYGFYTHVFRLKKWIQKVIDQFGE ) displayed significant binding to both LPS and lipid A , so did two control peptides with either selected D - amino acid substitutions or with maintained composition but scrambled sequence , both displaying strongly attenuated antiendotoxic effects .
 Chemical: D - 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: D - amino acid