Structural insights reveal the second base catalyst of isomaltose glucohydrolase.
Tagami, T., Chen, M., Furunaga, Y., Kikuchi, A., Sadahiro, J., Lang, W., Okuyama, M., Tanaka, Y., Iwasaki, T., Yao, M., Kimura, A.(2022) FEBS J 289: 1118-1134
- PubMed: 34665923 
- DOI: 10.1111/febs.16237
- Primary Citation of Related Structures:  
5Z3A, 5Z3B, 5Z3C, 5Z3D, 5Z3E, 5Z3F, 7C24, 7C25, 7C26, 7C27 - PubMed Abstract: 
Glycoside hydrolase family 15 (GH15) inverting enzymes contain two glutamate residues functioning as a general acid catalyst and a general base catalyst, for isomaltose glucohydrolase (IGHase), Glu178 and Glu335, respectively. Generally, a two-catalytic residue-mediated reaction exhibits a typical bell-shaped pH-activity curve ...