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Targeted protein degradation via intramolecular bivalent glues

Targeted protein degradation is a pharmacological modality that is based on the induced proximity of an E3 ubiquitin ligase and a target protein to promote target ubiquitination and proteasomal degradation. This has been achieved either via proteolysis-targeting chimeras (PROTACs)—bifunctional compounds composed of two separate moieties that individually bind the target and E3 ligase, or via molecular glues that monovalently bind either the ligase or the target1–4. Here, using orthogonal genetic screening, biophysical characterization and structural reconstitution, we investigate the mechanism of action of bifunctional degraders of BRD2 and BRD4, termed intramolecular bivalent glues (IBGs), and find that instead of connecting target and ligase in trans as PROTACs do, they simultaneously engage and connect two adjacent domains of the target protein in cis. This conformational change ‘glues’ BRD4 to the E3 ligases DCAF11 or DCAF16, leveraging intrinsic target̵ ....

South Korea , Van Molle , Acta Crystallogr , Development Of Bromotag , Drug Discovery , Nucleic Acids Res , Acids Res , Graphics System ,

The first Apple Tablet… from 1979 | Edible Apple

The first Apple Tablet… from 1979 | Edible Apple
edibleapple.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from edibleapple.com Daily Mail and Mail on Sunday newspapers.

Tod Rundgren , Graphics Tablet , Apple Graphics Tablet , Graphics System , Utopia Graphics Tablet System , Utopia Graphics Tablet , Snow Leopard ,