8153
Organic anion - transporting polypeptide 1B1 ( OATP1B1 ) is an important hepatic uptake transporter , of which the polymorphic variant OATP1B1 * 15 ( Asn130Asp and Val174Ala ) has been associated with decreased transport activity .
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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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