1575
Mass spectral analysis of CBDP - inhibited BChE digested with Glu - C showed an o - hydroxybenzyl adduct ( + 106amu ) on lysine 499 , a residue far from the active site , but not on His - 438 .
 Chemical: CBDP; Chemical: Glu; Chemical: o - hydroxybenzyl; Chemical: lysine; Chemical: His
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: CBDP; Chemical: Glu; Chemical: o - hydroxybenzyl; Chemical: lysine; Chemical: His