13941
In the present study , we demonstrate for the first time that TfR1 - NTF is subject to regulated intramembrane proteolysis and , using MALDI - TOF - TOF - MS , we have identified the cleavage site as being located C - terminal from Gly - 84 .
 Chemical: C; Chemical: Gly
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: C; Chemical: Gly