Task: Named Entity Recognition
Input (English):  Although the inhibitors prevented both pervanadate - induced phosphorylation of I kappa B - alpha on Tyr42 and NF - kappa B activation , we observed that , in p56 ( lck ) - deficient Jurkat mutants , NF - kappa B could still associate with I kappa B - alpha despite phosphorylation on Tyr42 .
Output (English): I kappa B