Task: Named Entity Recognition
Input (English):  Although serine phosphorylation has been shown to induce ubiquitination and subsequent proteasome - mediated degradation of I kappa B - alpha , little is known about the mechanisms that lead to release of active NF - kappa B in T cells as a consequence of tyrosine phosphorylation of I kappa B - alpha [ Imbert , V . , Rupec , R . A . , Livolsi , A . , Pahl , H . L . , Traenckner , B . M . , Mueller - Dieckmann , C . , Farahifar , D . , Rossi , B . , Auberger , P . , Baeuerle , P . & Peyron , J . F . ( 1996 ) Cell 86 , 787 - - 798 ] .
Output (English): I kappa B