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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

BAFF- induced NEMO-independent processing of NF-kappa B2 in maturing B cells.

NF-kappa B is usually activated by signal-induced, ubiquitin-mediated degradation of its inhibitor, I kappa B. This process is initiated by phosphorylation of I kappa B by the I kappa B kinase (IKK) complex, predominantly by the IKK beta catalytic subunit, and requires the regulatory subunit IKK gamma (NEMO). Another activation pathway, with no known physiological inducers, involves ubiquitin- mediated processing of the NF-kappa B2 inhibitory protein p100 and is dependent on phosphorylation of p100 by IKK alpha. We show here that B cell-activating factor (BAFF) activates this second pathway and that this requires the BAFF receptor (BAFF-R), the NF-kappa B-inducing kinase (NIK) and protein synthesis, but not NEMO. This NEMO-independent cascade is physiologically relevant for the survival and, hence, progression of maturing splenic B cells.[1]

References

  1. BAFF-induced NEMO-independent processing of NF-kappa B2 in maturing B cells. Claudio, E., Brown, K., Park, S., Wang, H., Siebenlist, U. Nat. Immunol. (2002) [Pubmed]
 
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