IFI16

Last updated

IFI16
Protein IFI16 PDB 2oq0.png
Available structures
PDB Human UniProt search: PDBe RCSB
Identifiers
Aliases IFI16 , IFNGIP1, PYHIN2, interferon gamma inducible protein 16
External IDs OMIM: 147586; MGI: 3695276; HomoloGene: 115929; GeneCards: IFI16; OMA:IFI16 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001033384
NM_001177349
NM_001177350
NM_001368798
NM_001368799

Contents

RefSeq (protein)

n/a

Location (UCSC) Chr 1: 159 – 159.06 Mb Chr 1: 173.39 – 173.43 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Gamma-interferon-inducible protein Ifi-16 (Ifi-16) also known as interferon-inducible myeloid differentiation transcriptional activator is a protein that in humans is encoded by the IFI16 gene. [5] [6] [7]

Function

This gene encodes a member of the HIN-200 (hematopoietic interferon-inducible nuclear antigens with 200 amino acid repeats) family of cytokines. The encoded protein contains domains involved in DNA binding, transcriptional regulation, and protein-protein interactions. The protein localizes to the nucleoplasm and nucleoli, and interacts with p53. [8] It modulates p53 function, and inhibits cell growth in the Ras/Raf signaling pathway. [7] IFI16 has been shown to play a role in the sensing of intracellular DNA [9] - a hallmark of virally infected cells - and has also been linked to the death of HIV-infected helper CD4 T cells by pyroptosis, a highly inflammatory form of programmed cell death. [10] [11] Recently, it has been shown how IFI16, once extracellularly released, can induce inflammation upon TLR4 binding, acting as a DAMP. [12]

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000163565 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000073491 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Trapani JA, Browne KA, Dawson MJ, Ramsay RG, Eddy RL, Show TB, et al. (Oct 1992). "A novel gene constitutively expressed in human lymphoid cells is inducible with interferon-gamma in myeloid cells". Immunogenetics. 36 (6): 369–376. doi:10.1007/bf00218044. PMID   1526658. S2CID   1196925.
  6. Trapani JA, Dawson M, Apostolidis VA, Browne KA (Dec 1994). "Genomic organization of IFI16, an interferon-inducible gene whose expression is associated with human myeloid cell differentiation: correlation of predicted protein domains with exon organization". Immunogenetics. 40 (6): 415–424. doi:10.1007/bf00177824. PMID   7959953. S2CID   2602156.
  7. 1 2 "Entrez Gene: IFI16 interferon, gamma-inducible protein 16".
  8. Ouchi M, Ouchi T (January 2008). "Role of IFI16 in DNA damage and checkpoint". Frontiers in Bioscience. 13 (13): 236–239. doi: 10.2741/2673 . PMID   17981541.
  9. Unterholzner L, Keating SE, Baran M, Horan KA, Jensen SB, Sharma S, et al. (November 2010). "IFI16 is an innate immune sensor for intracellular DNA". Nature Immunology. 11 (11): 997–1004. doi:10.1038/ni.1932. PMC   3142795 . PMID   20890285.
  10. Monroe KM, Yang Z, Johnson JR, Geng X, Doitsh G, Krogan NJ, et al. (January 2014). "IFI16 DNA sensor is required for death of lymphoid CD4 T cells abortively infected with HIV". Science. 343 (6169): 428–432. Bibcode:2014Sci...343..428M. doi:10.1126/science.1243640. PMC   3976200 . PMID   24356113.
  11. Doitsh G, Galloway NL, Geng X, Yang Z, Monroe KM, Zepeda O, et al. (January 2014). "Cell death by pyroptosis drives CD4 T-cell depletion in HIV-1 infection". Nature. 505 (7484): 509–514. Bibcode:2014Natur.505..509D. doi:10.1038/nature12940. PMC   4047036 . PMID   24356306.
  12. Iannucci A, Caneparo V, Raviola S, Debernardi I, Colangelo D, et al. (2020) Toll-like receptor 4-mediated inflammation triggered by extracellular IFI16 is enhanced by lipopolysaccharide binding. PLOS Pathogens 16(9): e1008811. https://doi.org/10.1371/journal.ppat.1008811

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.