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Discovery, synthesis and biochemical profiling of purine-2,6-dione derivatives as inhibitors of the human poly(A)-selective ribonuclease Caf1.


ABSTRACT: Eukaryotic mRNA contains a 3' poly(A) tail, which plays important roles in the regulation of mRNA stability and translation. Well-characterized enzymes involved in the shortening of the poly(A) tail include the multi-subunit Ccr4-Not deadenylase, which contains the Caf1 (Pop2) and Ccr4 catalytic components, and poly(A)-specific ribonuclease (PARN). Two Mg(2+) ions present in the active sites of these ribonucleases are required for RNA cleavage. Here, we report the discovery, synthesis and biochemical profiling of purine-2,6-dione derivatives as (sub)micromolar inhibitors of Caf1.

SUBMITTER: Jadhav GP 

PROVIDER: S-EPMC4577731 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

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Discovery, synthesis and biochemical profiling of purine-2,6-dione derivatives as inhibitors of the human poly(A)-selective ribonuclease Caf1.

Jadhav Gopal P GP   Kaur Ishwinder I   Maryati Maryati M   Airhihen Blessing B   Fischer Peter M PM   Winkler G Sebastiaan GS  

Bioorganic & medicinal chemistry letters 20150806 19


Eukaryotic mRNA contains a 3' poly(A) tail, which plays important roles in the regulation of mRNA stability and translation. Well-characterized enzymes involved in the shortening of the poly(A) tail include the multi-subunit Ccr4-Not deadenylase, which contains the Caf1 (Pop2) and Ccr4 catalytic components, and poly(A)-specific ribonuclease (PARN). Two Mg(2+) ions present in the active sites of these ribonucleases are required for RNA cleavage. Here, we report the discovery, synthesis and bioche  ...[more]

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