Characterization, structure and inhibition of the human succinyl-CoA:glutarate-CoA transferase, a genetic modifier of glutaric aciduria type 1

Author:

Khamrui Susmita,Dodatko Tetyana,Wu Ruoxi,Leandro João,Sabovic Amanda,Violante Sara,Cross Justin R.,Marsan Eric,Kumar Kunal,DeVita Robert J.,Lazarus Michael B.ORCID,Houten Sander M.ORCID

Abstract

AbstractGlutaric Aciduria Type 1 (GA1) is a serious inborn error of metabolism with no pharmacological treatments. A novel strategy to treat this disease is to divert the toxic biochemical intermediates to less toxic or non-toxic metabolites. Here, we report a novel target, SUGCT, which we hypothesize suppresses the GA1 metabolic phenotype through decreasing glutaryl-CoA. We report the structure of SUGCT, the first eukaryotic structure of a type III CoA transferase, develop a high-throughput enzyme assay and a cell-based assay, and identify valsartan and losartan carboxylic acid as inhibitors of the enzyme validating the screening approach. These results may form the basis for future development of new pharmacological intervention to treat GA1.

Publisher

Cold Spring Harbor Laboratory

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