14144
Here we show the structure / function relationship of the ( RA ) ( n ) and ( KA ) ( n ) motifs and determined that both basic residues and the heparin - induced alpha - helix formation are important for the assembly process .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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