12266
Strikingly, deletion of 346 C-terminal residues augmented this activity, whereas removal of 20 additional residues abolished it.
 protein: 346 C-terminal residues
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: 346 C-terminal residues 
Answer:
 protein: 346 C-terminal residues