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Role of IκB Kinase β in Regulating the Remodeling of the CARMA1-Bcl10-MALT1 Complex

Overview
Publisher Elsevier
Specialty Biochemistry
Date 2018 Apr 13
PMID 29649481
Citations 1
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Abstract

The current work investigates the notion that inducible clustering of signaling mediators of the IKK pathway is important for platelet activation. Thus, while the CARMA1, Bcl10, and MALT1 (CBM) complex is essential for triggering IKK/NF-κB activation upon platelet stimulation, the signals that elicit its formation and downstream effector activation remain elusive. We demonstrate herein that IKKβ is involved in membrane fusion, and serves as a critical protein kinase required for initial formation and the regulation of the CARMA1/MALT1/Bcl10/CBM complex in platelets. We also show that IKKβ regulates these processes via modulation of phosphorylation of Bcl10 and IKKγ polyubiquitination. Collectively, our data demonstrate that IKKβ regulates membrane fusion and the remodeling of the CBM complex formation.

Citing Articles

Regulator of G-Protein Signaling 16 Is a Negative Modulator of Platelet Function and Thrombosis.

Hernandez K, Karim Z, Qasim H, Druey K, Alshbool F, Khasawneh F J Am Heart Assoc. 2019; 8(5):e011273.

PMID: 30791801 PMC: 6474914. DOI: 10.1161/JAHA.118.011273.

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