11086
By using an artificial GM1 cluster - binding peptide , ASIGN was found to have a high density of GM1 ; therefore , there would be a critical density of GM1 in nanoclusters to induce A beta binding and assembly .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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