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.

 TRAIL expression on immature CD34DCs or MoDCs was greatly up - regulated after IFN - beta stimulation .
IFN - beta

 In electrophoretic mobility shift assays , an oligonucleotide containing kappa 3 forms two DNA protein complexes with proteins that are present in extracts from unstimulated T cells .
kappa 3

 MHC tetramers , which constitute a labeled MHC - peptide ligand suitable for binding to the Ag - specific receptor on T cells , provide a novel approach for the detection and characterization of such rare cells .

MHC tetramers