User:Boris Brumshtein: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 94: | Line 94: | ||
#[[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]] | ||