In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

Input: Consider Input:  We show in this study , using TCF - 1 beta ( 2 ) - microglobulin double - deficient mice , that these repertoire alterations are not due to Ly - 49 / MHC class I interactions .

Output: TCF - 1


Input: Consider Input:  Cortisol was able to minimize the enhancement of NK cytotoxicity obtainable in the presence of immune interferon ( IFN - gamma ) .

Output: IFN - gamma


Input: Consider Input:  Some of the T cells had the Ia antigen and were thus probably activated .


Output: Ia antigen