Article ; Online: Novel β-Glucocerebrosidase Activators That Bind to a New Pocket at a Dimer Interface and Induce Dimerization.
Angewandte Chemie (International ed. in English)
2021 Volume 60, Issue 10, Page(s) 5436–5442
Abstract: Genetic, preclinical and clinical data link Parkinson's disease and Gaucher's disease and provide a rational entry point to disease modification therapy via enhancement of β-Glucocerebrosidase (GCase) activity. We discovered a new class of pyrrolo[2,3-b] ... ...
Abstract | Genetic, preclinical and clinical data link Parkinson's disease and Gaucher's disease and provide a rational entry point to disease modification therapy via enhancement of β-Glucocerebrosidase (GCase) activity. We discovered a new class of pyrrolo[2,3-b]pyrazine activators effecting both Vmax and Km. They bind to human GCase and increase substrate metabolism in the lysosome in a cellular assay. We obtained the first crystal structure for an activator and identified a novel non-inhibitory binding mode at the interface of a dimer, rationalizing the observed structure-activity relationship (SAR). The compound binds GCase inducing formation of a dimeric state at both endoplasmic reticulum (ER) and lysosomal pHs, as confirmed by analytical ultracentrifugation. Importantly, the pyrrolo[2,3-b]pyrazines have central nervous system (CNS) drug-like properties. Our findings are important for future drug discovery efforts in the field of GCase activation and provide a deeper mechanistic understanding of the requirements for enzymatic activation, pointing to the relevance of dimerization. |
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MeSH term(s) | Binding Sites ; Crystallography, X-Ray ; Enzyme Activators/chemistry ; Enzyme Activators/metabolism ; Glucosylceramidase/chemistry ; Glucosylceramidase/metabolism ; Humans ; Kinetics ; Molecular Structure ; Protein Binding ; Protein Multimerization/drug effects ; Pyrazines/chemistry ; Pyrazines/metabolism ; Pyrroles/chemistry ; Pyrroles/metabolism ; Structure-Activity Relationship |
Chemical Substances | Enzyme Activators ; Pyrazines ; Pyrroles ; Glucosylceramidase (EC 3.2.1.45) |
Language | English |
Publishing date | 2021-01-19 |
Publishing country | Germany |
Document type | Journal Article |
ZDB-ID | 2011836-3 |
ISSN | 1521-3773 ; 1433-7851 |
ISSN (online) | 1521-3773 |
ISSN | 1433-7851 |
DOI | 10.1002/anie.202013890 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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