28026
As for the heteromer isolated from THP - 1 cells , the in vitro reconstituted SDS - stable and SDS - soluble heteromers had a weaker binding to gelatin than the proMMP - 9 monomer .
 Chemical: SDS; Chemical: SDS
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: SDS; Chemical: SDS