8654
Dabrafenib is a BRAF ( gene encoding serine / threonine - protein kinase B - Raf ) inhibitor that has been developed to selectively target the valine 600 to glutamic acid substitution ( BRAF ( V600E ) ) , which is commonly found in metastatic melanoma .
 Chemical: serine; Chemical: threonine; Chemical: valine; Chemical: glutamic acid
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: serine; Chemical: threonine; Chemical: valine; Chemical: glutamic acid