5231
The mutant peptides were observed to have significantly increased ( 250 - fold ) minimum hemolytic concentrations while maintaining MIC values against E . coli , affording more therapeutically selective CAPs .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None