21610
Lignin peroxidase ( LiP ) from Trametopsis cervina has an exposed catalytic tyrosine ( Tyr - 181 ) instead of the conserved tryptophan of other lignin - degrading peroxidases .
 Chemical: tyrosine; Chemical: Tyr; Chemical: tryptophan
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: tyrosine; Chemical: Tyr; Chemical: tryptophan