27403
Our study shows that only the B chain in the presence of TCEP is converted into aggregates with morphology ( according to atomic force microscopy ) and optical activity ( manifested as an extrinsic Cotton effect induced in bound thioflavin T ) characteristic of amyloid superstructures that are normally formed by insulin in the absence of TCEP .
 Chemical: TCEP; Chemical: thioflavin T; Chemical: TCEP
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: TCEP; Chemical: thioflavin T; Chemical: TCEP