Description: The antibody reacts with mouse lymphotoxin-beta receptor (LTBR). Northern blot analysis of tissues from adult mice showed that expression levels of LTBR mRNA were strong in lung, liver, and kidney, moderate in heart and testes, but weak in brain, thymus, spleen, and lymph nodes. The tumor necrosis factor receptor-related protein is the human receptor for the heterotrimer of lymphotoxinalpha and lymphotoxin beta. This LT alpha/LTbeta heterotrimer (LT alpha 1/beta 2) is assumed to take part in immunologic reactions by cell-cell contact, but does not bind to either TNFR1 (CD120 alpha) or TNFR2 (CD120 beta). LTBR is expressed by day 7 embryos, so it has been speculated that the LT alpha/LT beta receptor system may also have some function in early embryogenesis.