Reconstitute at 0.5 mg/mL in sterile PBS. Lad (TSAD, TSAd, F2771, SH2D2A, SH2 domain protein 2A) is a 52 kDa cytoplasmic adapter protein that undergoes tyrosine-phosphorylation and influences T cell activation. Lad (SH2D2A) mRNA is present in peripheral