Two types of soluble TNF receptors (sTNFR-I and sTNFR-II) have been identified, which act to neutralize the biological activities of TNF alpha and TNF beta. Synonym: sTNFR II, Tumour receptor beta receptor, Tumour necrosis factor binding protein 2, Tumour necrosis factor receptor superfamily member 1B, Tumour necrosis factor receptor type II, p80 TNF alpha receptor, Etanercept, CD120b, p75, TBPII, TNFRII, TNF-R75, TNFBR, TNFR2, TNFR80.