Ready-to-use ELISA kits are available for the detection of TAJ-alpha, an alias of the protein, TNF receptor superfamily member 19. The official gene symbol is TNFRSF19. The protein, with a mass of 46 kDa and length of 423 residues, is reported to be membrane-associated. It may be known by other names, including: TROY, TAJ-alpha, TAJ, toxicity and JNK inducer, and tumor necrosis factor receptor superfamily member 19.