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Biochem J. Aug 1, 2001; 357(Pt 3): 617–623.
PMCID: PMC1221992

Isolation and characterization of two novel A20-like proteins.

Abstract

The transcription factor nuclear factor kappa B (NF-kappa B) plays a pivotal role in inflammatory processes through induction of adhesion molecules and chemokines. The zinc finger molecule A20 is an important negative regulator of NF-kappa B. The mechanism utilized by A20 is not fully understood, but A20 has been shown to bind to tumour-necrosis-factor-receptor-associated factor (TRAF) molecules, which are necessary for pro-inflammatory cytokine signalling. We report two novel genes, Cezanne (cellular zinc finger anti-NF-kappa B) and TRABID (TRAF-binding domain), with sequence similarity to A20. Co-immunoprecipitation studies indicated that TRAF6 was able to interact with both Cezanne and TRABID. In contrast, reporter gene experiments revealed a specific ability of Cezanne to down-regulate NF-kappa B. It is likely, therefore, that Cezanne participates in the regulation of inflammatory processes.

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Selected References

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