IFIT5
Interferon-induced protein with tetratricopeptide repeats 5
Also known as: IFIT5_HUMAN, RI58
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q13325
- Gene
- IFIT5
- Ensembl
- ENSG00000152778
- Chromosome
- 10
- Canonical length
- 482 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Plasma membrane
OverviewNCBI Gene
Enables RNA binding activity and double-stranded DNA binding activity. Involved in defense response to virus; negative regulation of viral genome replication; and positive regulation of canonical NF-kappaB signal transduction. Located in several cellular components, including IkappaB kinase complex; actin cytoskeleton; and ruffle membrane. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
482 residues, UniProt reviewed canonical sequence.
>Q13325|IFIT5
1 MSEIRKDTLK AILLELECHF TWNLLKEDID LFEVEDTIGQ QLEFLTTKSR LALYNLLAYV
61 KHLKGQNKDA LECLEQAEEI IQQEHSDKEE VRSLVTWGNY AWVYYHMDQL EEAQKYTGKI
121 GNVCKKLSSP SNYKLECPET DCEKGWALLK FGGKYYQKAK AAFEKALEVE PDNPEFNIGY
181 AITVYRLDDS DREGSVKSFS LGPLRKAVTL NPDNSYIKVF LALKLQDVHA EAEGEKYIEE
241 ILDQISSQPY VLRYAAKFYR RKNSWNKALE LLKKALEVTP TSSFLHHQMG LCYRAQMIQI
301 KKATHNRPKG KDKLKVDELI SSAIFHFKAA MERDSMFAFA YTDLANMYAE GGQYSNAEDI
361 FRKALRLENI TDDHKHQIHY HYGRFQEFHR KSENTAIHHY LEALKVKDRS PLRTKLTSAL
421 KKLSTKRLCH NALDVQSLSA LGFVYKLEGE KRQAAEYYEK AQKIDPENAE FLTALCELRL
481 SILocalizationUniProt · AlphaFold · HPA
Whether an antibody against IFIT5 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
- Cell surface
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.24
- Highest tissue expression
- 22 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 22 nTPM
- spleen: 18 nTPM
- lung: 16 nTPM
- bone marrow: 15 nTPM
- cerebral cortex: 15 nTPM
- ovary: 14 nTPM
Single-cell type
- epididymal basal cells: 48 nCPM
- alveolar cells type 1: 40 nCPM
- hepatic stellate cells: 32 nCPM
- epididymal efferent duct ciliated cells: 29 nCPM
- decidual stromal cells: 27 nCPM
- pericytes: 26 nCPM
Immune cell
- neutrophil: 45 nTPM
- non-classical monocyte: 32 nTPM
- intermediate monocyte: 26 nTPM
- basophil: 25 nTPM
- memory B-cell: 22 nTPM
- eosinophil: 19 nTPM
Brain region
- choroid plexus: 56 nTPM
- spinal cord: 44 nTPM
- cerebellum: 42 nTPM
- white matter: 37 nTPM
- medulla oblongata: 35 nTPM
- hypothalamus: 34 nTPM
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)
- 0.92
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.35
- DepMap mean gene effect
- -0.03
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- defense response to virus
- innate immune response
- negative regulation of viral genome replication
- positive regulation of canonical NF-kappaB signal transduction
Molecular functions
- double-stranded DNA binding
- poly(U) RNA binding
- RNA binding
- RNA cap binding
- single-stranded RNA binding
- tRNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of IFIT5 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 IFIT5 as an antibody target. Whether an autoantibody or antibody against IFIT5 could matter depends on whether native IFIT5 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
IFIT5 is annotated at the cell surface, where native IFIT5 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label IFIT5 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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