User:Boris Brumshtein: Difference between revisions

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#[[2v3d]] ACID-BETA-GLUCOSIDASE WITH N-BUTYL-DEOXYNOJIRIMYCIN  
#[[2v3d]] ACID-BETA-GLUCOSIDASE WITH N-BUTYL-DEOXYNOJIRIMYCIN  
#[[2v3e]] ACID-BETA-GLUCOSIDASE WITH N-NONYL-DEOXYNOJIRIMYCIN  
#[[2v3e]] ACID-BETA-GLUCOSIDASE WITH N-NONYL-DEOXYNOJIRIMYCIN  
 
 
==MY CURRENT RESEARCH==
 
My PhD research thesis focuses on the enzyme acid-beta-glucosidase, with the
emphasis on the enzyme's structure and its interactions with various ligands and
their pharmacological potential.
 
The enzyme is involved in a Gaucher disease, which is the most common
lysosomal storage disease, and is associated with mutations in the gene
coding for the enzyme acid-beta-glucosidase.
 
There are ~200 known mis-sense mutations, which result in substitution of amino acids in the protein.
Some mutations cause complete deactivation of the enzyme; others impair its stability, and some
affect both activity and stability.
 
There are three known phenotypes of the disease: a mild, severe and acute.
The acute phenotype is neuropathic, while severe and mild symptoms are caused by accumulation of
glucoceramide in macrophage cells resulting in bone atrophy, spleen enlargement, etc.
 
We have solved structures of recombinant acid-beta-glucosidase expressed in both mammalian
and plant cell cultures, as well as of complexes with molecules, which have been shown to inhibit
glucoceramide synthase and in a less extent acid-beta-glucosidase. Yet these molecules were shown
to stabilize several mutant forms of the mutant enzyme in Gaucher disease.
 
We have shown that the molecular basis for the stabilization of acid-beta-glucosidase by these small molecules
is by binding to the active site and contributing additional non-covalent bonds that stabilize the enzyme's overall structure.
 


The page is always under construction ; last update [[User:Boris Brumshtein|Boris Brumshtein]] 14:12, 8 June 2008 (IDT)
The page is always under construction ; last update [[User:Boris Brumshtein|Boris Brumshtein]] 14:12, 8 June 2008 (IDT)


[[Image:UnderConstruction.gif| 300px| thumb | left]]
[[Image:UnderConstruction.gif| 300px| thumb | left]]