20108
A comparison of BLG and BSA suggests that the difference between pHmax ( the pH of the maximum aggregation rate ) and pI is systematically related to the nature of protein charge asymmetry , as further supported by the effect of localized charge density on the dramatically different aggregation rates of the two BLG isoforms .
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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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