Interaction of BCL10:MALT1 with CARMA1 to form CBM complex

Stable Identifier
Homo sapiens
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Phosphorylation of CARMA1 causes conformational change such that its CARD motif is exposed and is free to interact with BCL10 CARD motif. BCL10 constitutively associated with MALT1 and exists as a preformed complex in the cytoplasm. BCL10 and MALT1 have been identified as key positive regulators of FCERI-dependent NF-kB activation (Klemm et al. 2006). The resulting CARMA1-BCL10-MALT1 (CBM) complex may be stabilized by interactions between the CARMA1 coiled coil (CC) domain and a C-terminal MALT1 region that lacks the DD and first two Ig domains (Thome et al. 2010, Che et al. 2004). The CBM complex transmits activating signals that ultimately result in ubiquitination (Ub) and degradation of the NF-kB inhibitor, IkBa.

Literature References
PubMed ID Title Journal Year
11090634 Identification of paracaspases and metacaspases: two ancient families of caspase-like proteins, one of which plays a key role in MALT lymphoma

Koonin, EV, Seshagiri, S, Pisabarro, MT, O'Rourke, K, Uren, AG, Dixit, VM, Aravind, LA

Mol. Cell 2000
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