5743
The typical surface structures that play important roles in substrate selectivity ( the lid domain and the beta 9 loop ) were shortened in the Ves a 1 structure , which suggests that this enzyme may only exhibit phospholipase activity .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None