InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: TNFRSF21

Summary

InnateDB Protein

IDBP-90065.6

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

TNFRSF21

Protein Name

tumor necrosis factor receptor superfamily, member 21

Synonyms

Species

Homo sapiens

Ensembl Protein

ENSP00000296861

InnateDB Gene

IDBG-90063 (TNFRSF21)

Protein Structure

UniProt Annotation

Function

Promotes apoptosis, possibly via a pathway that involves the activation of NF-kappa-B. Can also promote apoptosis mediated by BAX and by the release of cytochrome c from the mitochondria into the cytoplasm. Plays a role in neuronal apoptosis, including apoptosis in response to amyloid peptides derived from APP, and is required for both normal cell body death and axonal pruning. Trophic-factor deprivation triggers the cleavage of surface APP by beta-secretase to release sAPP-beta which is further cleaved to release an N-terminal fragment of APP (N-APP). N-APP binds TNFRSF21; this triggers caspase activation and degeneration of both neuronal cell bodies (via caspase-3) and axons (via caspase- 6). Negatively regulates oligodendrocyte survival, maturation and myelination. Plays a role in signaling cascades triggered by stimulation of T-cell receptors, in the adaptive immune response and in the regulation of T-cell differentiation and proliferation. Negatively regulates T-cell responses and the release of cytokines such as IL4, IL5, IL10, IL13 and IFNG by Th2 cells. Negatively regulates the production of IgG, IgM and IgM in response to antigens. May inhibit the activation of JNK in response to T-cell stimulation. {ECO:0000269PubMed:21725297, ECO:0000269PubMed:22761420, ECO:0000269PubMed:9714541}.

Subcellular Localization

Cell membrane {ECO:0000269PubMed:19654028}; Single-pass type I membrane protein {ECO:0000269PubMed:19654028}.

Disease Associations

Tissue Specificity

Detected in fetal spinal cord and in brain neurons, with higher levels in brain from Alzheimer disease patients (at protein level). Highly expressed in heart, brain, placenta, pancreas, lymph node, thymus and prostate. Detected at lower levels in lung, skeletal muscle, kidney, testis, uterus, small intestine, colon, spleen, bone marrow and fetal liver. Very low levels were found in adult liver and peripheral blood leukocytes. {ECO:0000269PubMed:21725297, ECO:0000269PubMed:23559013, ECO:0000269PubMed:9714541}.

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 11 experimentally validated interaction(s) in this database.

Experimentally validated
Total	11 [view]
Protein-Protein	9 [view]
Protein-DNA	2 [view]
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Gene Ontology

Molecular Function

Accession	GO Term
GO:0005515	protein binding

Biological Process

GO:0001783	B cell apoptotic process
GO:0002250	adaptive immune response
GO:0006915	apoptotic process
GO:0006959	humoral immune response
GO:0007165	signal transduction
GO:0030889	negative regulation of B cell proliferation
GO:0031642	negative regulation of myelination
GO:0042130	negative regulation of T cell proliferation
GO:0042552	myelination
GO:0044255	cellular lipid metabolic process
GO:0044281	small molecule metabolic process
GO:0048713	regulation of oligodendrocyte differentiation
GO:0050852	T cell receptor signaling pathway
GO:0051402	neuron apoptotic process
GO:0071356	cellular response to tumor necrosis factor
GO:0097252	oligodendrocyte apoptotic process
GO:2000663	negative regulation of interleukin-5 secretion
GO:2000666	negative regulation of interleukin-13 secretion
GO:2001180	negative regulation of interleukin-10 secretion