Creative Peptides offers T-Select H-2Kb Negative (SIY) tetramer-SIYRYYGL-PE labeled which can be used for direct detection of antigen specific T cells. Visit
https://www.creative-peptides.com/product/t-select-h-2kb-negative-siy-tetramer-siyryygl-pe-labeled-item-cpm-1-0009-33849.html for more information.