55- kilodalton (p55) og 75- kilodalton (p75) tumornekrosefaktorreceptorer (TNFR).
TNF and lymphotoxin are pro- inflammatory cytokines that bind to two distinct cell surface receptors: the 55-kilodalton (p55) and 75-kilodalton (p75) tumour necrosis factor receptors (TNFRs).