Tumor necrosis factor receptor 1A, death domain (IPR033994)

Short name: TNFRSF1A_death

Overlapping homologous superfamilies

Domain relationships

  • Death domain (IPR000488)
    • Tumor necrosis factor receptor 1A, death domain (IPR033994)


This entry represents the death domain (DD) found in tumor necrosis factor receptor-1 (TNFR-1). TNFR-1 has many names including TNFRSF1A, CD120a, p55, p60, and TNFR60. It activates two major intracellular signaling pathways that lead to the activation of the transcription factor NF-kB and the induction of cell death. Upon binding of its ligand TNF, TNFR-1 trimerizes which leads to the recruitment of an adaptor protein named TNFR-associated death domain protein (TRADD) through a DD/DD interaction [PMID: 12040173]. Mutations in the TNFRSF1A gene causes TNFR-associated periodic syndrome (TRAPS), a rare disorder characterized recurrent fever, myalgia, abdominal pain, conjunctivitis and skin eruptions [PMID: 19673872, PMID: 16447098].

DDs are protein-protein interaction domains found in a variety of domain architectures. Their common feature is that they form homodimers by self-association or heterodimers by associating with other members of the DD superfamily including CARD (Caspase activation and recruitment domain), DED (Death Effector Domain), and PYRIN. They serve as adaptors in signaling pathways and can recruit other proteins into signaling complexes [PMID: 17201679, PMID: 7482697].

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0005515 protein binding

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.