In Western blots, no cross-reactivity with recombinant human (rh) 4-1BB, rhBAFF R, rhCD27, rhCD30, rhCD40, rhDR3, rhDR6, rhEDAR, rhFAS, rhGITR, rhHVEM, rhLT beta R, rhNGF R, rhRANK, rhRELT, rhTAJ, rhTNF RI, rhTNF RII, rhTRAIL, rhTRAIL R4, rhTRAIL R3, rhT