The Love and Shalek labs devised a high throughput single-cell RNA sequencing method for identifying T cells that share a particular target. Conventional RNA sequencing reads only one end of an RNA molecule. Yet, the variable sequences encoding for T cell receptors (TCR), which bind to receptors on target cells, reside on the other end. The new method, published in Nature Immunology and partly supported by the Bridge Project, complements the conventional approach by amplifying TCR-encoding RNA molecules labeled for their T cells of origin, then pulls and sequences them. The study identified T cells that produce inflammation in peanut allergies, but the technique can be applied to a variety of T cell responses, including patient responses to cancer immunotherapies.