PR:000001960 tumor necrosis factor receptor superfamily member 4 ACT35 antigen|CD134|Ox40|OX40 antigen|OX40L receptor|TAX transcriptionally-activated glycoprotein 1 receptor|TNFRSF4|Txgp1|TXGP1L has_part Pfam:PF00020 TNFR/NGFR cysteine-rich region 20090326 PRO:CNA