Seroatlas · Human Serome Atlas

IFI6

Interferon alpha-inducible protein 6

Also known as: 6-16, FAM14C, G1P3, IFI-6-16, IFI6_HUMAN, IFI616

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P09912
Gene
IFI6
Ensembl
ENSG00000126709
Chromosome
1
Canonical length
130 aa
Protein class
Predicted membrane proteins
Subcellular location
Mitochondria

OverviewNCBI Gene

This gene was first identified as one of the many genes induced by interferon. The encoded protein may play a critical role in the regulation of apoptosis. A minisatellite that consists of 26 repeats of a 12 nucleotide repeating element resembling the mammalian splice donor consensus sequence begins near the end of the second exon. Alternatively spliced transcript variants that encode different isoforms by using the two downstream repeat units as splice donor sites have been described. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

130 residues, UniProt reviewed canonical sequence.

>P09912|IFI6
     1  MRQKAVSLFL CYLLLFTCSG VEAGKKKCSE SSDSGSGFWK ALTFMAVGGG LAVAGLPALG
    61  FTGAGIAANS VAASLMSWSA ILNGGGVPAG GLVATLQSLG AGGSSVVIGN IGALMGYATH
   121  KYLDSEEDEE

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against IFI6 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Other membrane
Secreted
No
Transmembrane segments
4
Mean surface accessibility (rSASA)
0.57
Highest tissue expression
3,350 nTPM

Expression across tissuesHPA

Tissue

  • choroid plexus: 3,350 nTPM
  • salivary gland: 314 nTPM
  • pituitary gland: 309 nTPM
  • placenta: 280 nTPM
  • hypothalamus: 253 nTPM
  • basal ganglia: 217 nTPM

Single-cell type

  • syncytiotrophoblasts: 2,989 nCPM
  • cytotrophoblasts: 2,860 nCPM
  • migrating cytotrophoblasts: 2,580 nCPM
  • extravillous trophoblasts: 913 nCPM
  • tuft cells: 415 nCPM
  • ovarian stromal cells: 240 nCPM

Immune cell

  • neutrophil: 509 nTPM
  • intermediate monocyte: 375 nTPM
  • classical monocyte: 267 nTPM
  • non-classical monocyte: 260 nTPM
  • eosinophil: 253 nTPM
  • basophil: 194 nTPM

Brain region

  • spinal cord: 504 nTPM
  • medulla oblongata: 300 nTPM
  • hypothalamus: 224 nTPM
  • choroid plexus: 211 nTPM
  • pons: 195 nTPM
  • cerebral cortex: 195 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about IFI6.

Disease | ImmuneIEDB

Conditions an epitope on IFI6 was assayed in.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
1.65
gnomAD pLI
0.01
gnomAD missense Z
1.32
DepMap mean gene effect
-0.02
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of IFI6 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads IFI6 as an antibody target. Whether an autoantibody or antibody against IFI6 could matter depends on whether native IFI6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

IFI6 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label IFI6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/IFI6. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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