13405
We initially engineered two distinct MTL constructs , each composed of a type II transmembrane domain , a peptide linker , and a C terminal extracellular ligand that corresponded to either the alpha or beta bursicon subunit .
 Chemical: C
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