Version 5.4
Homo sapiens Protein: IFI16
Summary
InnateDB Protein IDBP-389192.5
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol IFI16
Protein Name interferon, gamma-inducible protein 16
Synonyms IFNGIP1; PYHIN2;
Species Homo sapiens
Ensembl Protein ENSP00000407052
InnateDB Gene IDBG-103852 (IFI16)
Protein Structure
UniProt Annotation
Function Binds double-stranded DNA. Binds preferentially to supercoiled DNA and cruciform DNA structures. Seems to be involved in transcriptional regulation. May function as a transcriptional repressor. Could have a role in the regulation of hematopoietic differentiation through activation of unknown target genes. Controls cellular proliferation by modulating the functions of cell cycle regulatory factors including p53/TP53 and the retinoblastoma protein. May be involved in TP53-mediated transcriptional activation by enhancing TP53 sequence-specific DNA binding and modulating TP53 phosphorylation status. Seems to be involved in energy-level-dependent activation of the ATM/ AMPK/TP53 pathway coupled to regulation of autophagy. May be involved in regulation of TP53-mediated cell death also involving BRCA1. May be involved in the senescence of prostate epithelial cells. Involved in innate immune response by recognizing viral dsDNA in the cytosol and probably in the nucleus. After binding to viral DNA in the cytoplasm recruits TMEM173/STING and mediates the induction of IFN-beta. Has anti-inflammatory activity and inhibits the activation of the AIM2 inflammasome, probably via association with AIM2. Proposed to bind viral DNA in the nucleus, such as of Kaposi's sarcoma-associated herpesvirus, and to induce the formation of nuclear caspase-1-activating inflammasome formation via association with PYCARD. Inhibits replication of herpesviruses such as human cytomegalovirus (HCMV) probably by interfering with promoter recruitment of members of the Sp1 family of transcription factors. Necessary to activate the IRF3 signaling cascade during human herpes simplex virus 1 (HHV-1) infection and promotes the assembly of heterochromatin on herpesviral DNA and inhibition of viral immediate-early gene expression and replication. Involved in the MTA1-mediated epigenetic regulation of ESR1 expression in breast cancer. {ECO:0000269PubMed:11146555, ECO:0000269PubMed:12894224, ECO:0000269PubMed:14654789, ECO:0000269PubMed:20890285, ECO:0000269PubMed:21573174, ECO:0000269PubMed:21575908, ECO:0000269PubMed:22046441, ECO:0000269PubMed:22291595, ECO:0000269PubMed:23027953, ECO:0000269PubMed:24198334, ECO:0000269PubMed:24413532, ECO:0000269PubMed:9642285}.
Subcellular Localization Nucleus. Cytoplasm. Note=Cellular distribution is dependent on the acetylation status of the multipartite nuclear localization signal (NLS); NLS acetylation promotes cytoplasmic localization. Localizes in the nucleus during human herpes simplex virus 1 (HHV-1) infection.
Disease Associations
Tissue Specificity Expressed in peripheral blood leukocytes, fibroblasts and lymphoid cells. Present in myeloid precursors (CD34+) and throughout monocyte development, but its expression is down-regulated in erythroid and polymorphonuclear precursor cells. Present in prostate, ovary and breast (at protein level). {ECO:0000269PubMed:12894224}.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 23 experimentally validated interaction(s) in this database.
Experimentally validated
Total 23 [view]
Protein-Protein 20 [view]
Protein-DNA 3 [view]
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
Biological Process
GO:0045087 innate immune response (InnateDB)
Cellular Component
Protein Structure and Domains
PDB ID
InterPro IPR004020 DAPIN domain
IPR011029 Death-like domain
PFAM PF02758
PRINTS
PIRSF
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt
PhosphoSite PhosphoSite-Q16666
TrEMBL X6RHM1
UniProt Splice Variant
Entrez Gene 3428
UniGene Hs.629190
RefSeq
HUGO HGNC:5395
OMIM 147586
CCDS
HPRD 00969
IMGT
EMBL AL359753
GenPept

If you use InnateDB for your research, please cite the following publication:

Breuer et al., InnateDB: systems biology of innate immunity and beyond - recent updates and continuing curation. Nucl. Acids Res. (2013) 41 (D1) 

InnateDB is being developed jointly by the Brinkman Laboratory (Simon Fraser University, British Columbia, Canada), the Hancock Laboratory (University of British Columbia, Vancouver, British Columbia) and the Lynn EMBL Australia Group (South Australian Health & Medical Research Institute and Flinders University, Adelaide, Australia).

Funding is currently provided by Allergen and EMBL Australia. Previous funding has been provided by Genome Canada, the Foundation for the National Institutes of Health through the Grand Challenges in Global Health initiative and by Teagasc. InnateDB curated interactions are licensed under the Design Science License. All other data is licensed under the terms of the originating database. Contact: innatedb-mail@sfu.ca