IFNA5

gene
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Also known as IFN-alphaG

Summary

IFNA5 (interferon alpha 5, HGNC:5426) is a protein-coding gene on chromosome 9p21.3, encoding Interferon alpha-5 (P01569). Produced by macrophages, IFN-alpha have antiviral activities.

Predicted to enable cytokine activity and type I interferon receptor binding activity. Predicted to be involved in several processes, including lymphocyte activation involved in immune response; response to exogenous dsRNA; and type I interferon-mediated signaling pathway. Predicted to be located in extracellular region. Predicted to be active in extracellular space.

Source: NCBI Gene 3442 — RefSeq curated summary.

At a glance

  • Clinical variants (ClinVar): 34 total
  • Druggable target: yes
  • MANE Select transcript: NM_002169

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:5426
Approved symbolIFNA5
Nameinterferon alpha 5
Location9p21.3
Locus typegene with protein product
StatusApproved
AliasesIFN-alphaG
Ensembl geneENSG00000147873
Ensembl biotypeprotein_coding
OMIM147565
Entrez3442

Gene structure

Transcript identifiers

Ensembl transcripts: 1 — 1 protein_coding

ENST00000610521

RefSeq mRNA: 1 — MANE Select: NM_002169 NM_002169

CCDS: CCDS6502

Canonical transcript exons

ENST00000610521 — 1 exons

ExonStartEnd
ENSE000037248562130432621305313

Expression profiles

Bgee: expression breadth broad, 23 present calls, max score 56.55.

Top tissues by expression

203 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
deciduaUBERON:000245056.55gold quality
ileal mucosaUBERON:000033155.84gold quality
hair follicleUBERON:000207352.83gold quality
pancreatic ductal cellCL:000207952.30silver quality
frontal poleUBERON:000279550.41gold quality
quadriceps femorisUBERON:000137750.30gold quality
middle frontal gyrusUBERON:000270250.30gold quality
paraflocculusUBERON:000535150.18gold quality
Brodmann (1909) area 10UBERON:001354150.18gold quality
epithelial cell of pancreasCL:000008349.86gold quality
metanephric glomerulusUBERON:000473649.61gold quality
Brodmann (1909) area 46UBERON:000648349.30gold quality
cerebellar vermisUBERON:000472049.25gold quality
cervix squamous epitheliumUBERON:000692249.20gold quality
vastus lateralisUBERON:000137949.17gold quality
olfactory bulbUBERON:000226448.92gold quality
myocardiumUBERON:000234948.87gold quality
type B pancreatic cellCL:000016948.83gold quality
oviduct epitheliumUBERON:000480448.76gold quality
cardiac muscle of right atriumUBERON:000337948.55gold quality
CA1 field of hippocampusUBERON:000388148.50gold quality
thymusUBERON:000237048.43gold quality
left ventricle myocardiumUBERON:000656648.24gold quality
orbitofrontal cortexUBERON:000416748.20gold quality
kidney epitheliumUBERON:000481948.11gold quality
upper arm skinUBERON:000426348.06gold quality
cervix epitheliumUBERON:000480148.04gold quality
tongue squamous epitheliumUBERON:000691947.92gold quality
mucosa of urinary bladderUBERON:000125947.80gold quality
nephron tubuleUBERON:000123147.30gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 0.

ExperimentMarker?Max mean expression
E-ANND-3no0.48

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): IRF3, IRF5, IRF7, IRF8, PITX1

Literature-anchored findings (GeneRIF, showing 2)

  • This is the first report of positive association of IFNA gene in SLE, especially the role of specific subtypes IFNA1 and IFNA5. (PMID:19000144)
  • Alpha interferon suppresses the cyclin D3 and cdc25A genes, leading to a reversible G0-like arrest. (PMID:8668211)

Cross-species orthologs

34 orthologs

OrganismSymbolGene ID
danio_rerioifnphi2ENSDARG00000069012
danio_rerioifnphi3ENSDARG00000070676
mus_musculusIfna13ENSMUSG00000063376
mus_musculusIfna4ENSMUSG00000070904
mus_musculusIfna12ENSMUSG00000073811
mus_musculusIfna2ENSMUSG00000078354
mus_musculusIfna16ENSMUSG00000078355
mus_musculusIfna9ENSMUSG00000095270
mus_musculusIfna1ENSMUSG00000095498
mus_musculusIfna14ENSMUSG00000095896
mus_musculusIfna15ENSMUSG00000096011
mus_musculusIfna5ENSMUSG00000096682
mus_musculusIfnabENSMUSG00000100079
mus_musculusIfna11ENSMUSG00000100549
mus_musculusIfna7ENSMUSG00000100713
mus_musculusIfna6ENSMUSG00000101252
rattus_norvegicusENSRNOG00000071845
rattus_norvegicusIfna12lENSRNOG00000072681
rattus_norvegicusIfna16l1ENSRNOG00000074841
rattus_norvegicusENSRNOG00000075722
rattus_norvegicusENSRNOG00000076372
rattus_norvegicusIfna4ENSRNOG00000077072
rattus_norvegicusIfna2ENSRNOG00000078310
rattus_norvegicusIfna5ENSRNOG00000079725
rattus_norvegicusIfna1l1ENSRNOG00000079800
rattus_norvegicusENSRNOG00000079804
rattus_norvegicusENSRNOG00000081823
rattus_norvegicusENSRNOG00000082441
rattus_norvegicusENSRNOG00000082845
rattus_norvegicusENSRNOG00000083047
rattus_norvegicusIfna1ENSRNOG00000084770
rattus_norvegicusENSRNOG00000085373
rattus_norvegicusENSRNOG00000085882
rattus_norvegicusENSRNOG00000086565

Paralogs (16): IFNA6 (ENSG00000120235), IFNA8 (ENSG00000120242), IFNA21 (ENSG00000137080), IFNA16 (ENSG00000147885), IFNK (ENSG00000147896), IFNB1 (ENSG00000171855), IFNW1 (ENSG00000177047), IFNE (ENSG00000184995), IFNA10 (ENSG00000186803), IFNA2 (ENSG00000188379), IFNA1 (ENSG00000197919), IFNA7 (ENSG00000214042), IFNA14 (ENSG00000228083), IFNA13 (ENSG00000233816), IFNA17 (ENSG00000234829), IFNA4 (ENSG00000236637)

Protein

Protein identifiers

Interferon alpha-5P01569 (reviewed: P01569)

Alternative names: Interferon alpha-61, Interferon alpha-G

All UniProt accessions (2): P01569, A0A7R8C382

UniProt curated annotations — full annotation on UniProt →

Function. Produced by macrophages, IFN-alpha have antiviral activities. Interferon stimulates the production of two enzymes: a protein kinase and an oligoadenylate synthetase.

Subcellular location. Secreted.

Similarity. Belongs to the type-I (or alpha/beta) interferon family.

RefSeq proteins (1): NP_002160* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000471Interferon_alpha/beta/deltaFamily
IPR0090794_helix_cytokine-like_coreHomologous_superfamily

Pfam: PF00143

UniProt features (4 total): disulfide bond 2, signal peptide 1, chain 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P01569-F188.120.62

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Disulfide bonds (2): 24–122, 52–162

Function

Pathways and Gene Ontology

Reactome pathways

6 pathways

IDPathway
R-HSA-909733Interferon alpha/beta signaling
R-HSA-912694Regulation of IFNA/IFNB signaling
R-HSA-933541TRAF6 mediated IRF7 activation
R-HSA-9705671SARS-CoV-2 activates/modulates innate and adaptive immune responses
R-HSA-983231Factors involved in megakaryocyte development and platelet production
R-HSA-9833109Evasion by RSV of host interferon responses

MSigDB gene sets: 120 (showing top): REACTOME_DDX58_IFIH1_MEDIATED_INDUCTION_OF_INTERFERON_ALPHA_BETA, BROWNE_HCMV_INFECTION_4HR_UP, GOBP_RESPONSE_TO_NITROGEN_COMPOUND, GOBP_CELLULAR_RESPONSE_TO_VIRUS, REACTOME_INNATE_IMMUNE_SYSTEM, REACTOME_CYTOKINE_SIGNALING_IN_IMMUNE_SYSTEM, GOBP_RESPONSE_TO_PEPTIDE, GOBP_B_CELL_ACTIVATION, GOBP_T_CELL_ACTIVATION_INVOLVED_IN_IMMUNE_RESPONSE, GOBP_RESPONSE_TO_TYPE_I_INTERFERON, BROWNE_HCMV_INFECTION_16HR_UP, KEGG_CYTOSOLIC_DNA_SENSING_PATHWAY, GOBP_CELL_ACTIVATION_INVOLVED_IN_IMMUNE_RESPONSE, GOBP_DEFENSE_RESPONSE_TO_OTHER_ORGANISM, BLALOCK_ALZHEIMERS_DISEASE_UP

GO Biological Process (11): adaptive immune response (GO:0002250), T cell activation involved in immune response (GO:0002286), B cell activation involved in immune response (GO:0002312), natural killer cell activation involved in immune response (GO:0002323), humoral immune response (GO:0006959), response to exogenous dsRNA (GO:0043330), defense response to virus (GO:0051607), type I interferon-mediated signaling pathway (GO:0060337), cellular response to virus (GO:0098586), defense response (GO:0006952), signal transduction (GO:0007165)

GO Molecular Function (3): cytokine activity (GO:0005125), cytokine receptor binding (GO:0005126), type I interferon receptor binding (GO:0005132)

GO Cellular Component (2): extracellular region (GO:0005576), obsolete extracellular space (GO:0005615)

Reactome top-level categories

Rollup of top-6 pathways:

CategoryPathways
Interferon Signaling1
Interferon alpha/beta signaling1
DDX58/IFIH1-mediated induction of interferon-alpha/beta1
SARS-CoV-2-host interactions1
Hemostasis1
RSV-host interactions1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
immune response4
lymphocyte activation involved in immune response3
response to virus2
T cell activation1
B cell activation1
natural killer cell activation1
innate immune response1
response to dsRNA1
defense response1
cellular response to type I interferon1
interferon-mediated signaling pathway1
response to stress1
cell communication1
cellular process1
signaling1
regulation of cellular process1
cellular response to stimulus1
receptor ligand activity1
signaling receptor binding1
cytokine receptor binding1
protein-containing complex binding1
cellular anatomical structure1

Protein interactions and networks

STRING

1370 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
IFNA5IL2P01585855
IFNA5IFNGP01579762
IFNA5IFNAR1P17181750
IFNA5ISG15P05161678
IFNA5CR2P20023668
IFNA5IFNL3Q8IZI9668
IFNA5IL6P05231662
IFNA5IRF8Q02556645
IFNA5TLR3O15455642
IFNA5MX1P20591632
IFNA5ABL1P00519624
IFNA5GPTP24298624
IFNA5CD4P01730621
IFNA5TNFP01375609
IFNA5MX2P20592596

IntAct

6 interactions, top by confidence:

ABTypeScore
IFNA2IFIT3psi-mi:“MI:0914”(association)0.530
IFNA5IFNA13psi-mi:“MI:0914”(association)0.530
IFNA5LGALS9psi-mi:“MI:0914”(association)0.350

BioGRID (40): IFNA5 (Affinity Capture-MS), UBR3 (Affinity Capture-MS), IFNA13 (Affinity Capture-MS), IFNA14 (Affinity Capture-MS), IFNA17 (Affinity Capture-MS), IFNA6 (Affinity Capture-MS), IFNA4 (Affinity Capture-MS), ADAMTS1 (Affinity Capture-MS), IFIT3 (Affinity Capture-MS), CLU (Affinity Capture-MS), SURF1 (Affinity Capture-MS), ISG15 (Affinity Capture-MS), IFI44L (Affinity Capture-MS), IFIT1 (Affinity Capture-MS), IFNA6 (Affinity Capture-MS)

ESM2 similar proteins: O46633, P01562, P01563, P01566, P01567, P01568, P01569, P01570, P01571, P01572, P05000, P05002, P05003, P05004, P05005, P05006, P05007, P05008, P05009, P05010, P05013, P05014, P05015, P07348, P07349, P07352, P09235, P15696, P28169, P28171, P28172, P32881, P49876, P49877, P49878, P49879, P56828, P56829, P56830, P56831

Diamond homologs: A7UHZ5, O46633, O77812, O97945, P01562, P01563, P01566, P01567, P01568, P01569, P01570, P01571, P01572, P01573, P01574, P01575, P01576, P01577, P01578, P05000, P05001, P05002, P05003, P05004, P05005, P05006, P05007, P05008, P05009, P05010, P05011, P05012, P05013, P05014, P05015, P06799, P07348, P07349, P07350, P07351

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

34 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance30
Likely benign2
Benign2

Top pathogenic / likely-pathogenic (0)

SpliceAI

254 predictions. Top by Δscore:

VariantEffectΔscore
9:21305151:T:TAdonor_gain0.7600
9:21304973:T:TAdonor_gain0.6900
9:21304505:T:Cdonor_gain0.6500
9:21304549:A:Cdonor_gain0.6500
9:21304954:ATC:Adonor_gain0.6100
9:21304954:AT:Adonor_gain0.5900
9:21304955:T:TAdonor_gain0.5900
9:21304626:A:Cdonor_gain0.5800
9:21304547:TAAC:Tdonor_gain0.5700
9:21304548:AACA:Adonor_gain0.5700
9:21304548:A:ACdonor_gain0.5600
9:21304892:CAGG:Cdonor_gain0.5600
9:21304898:T:TAdonor_gain0.5600
9:21305209:G:Adonor_gain0.5600
9:21304876:A:Tdonor_gain0.5500
9:21304880:T:TAdonor_gain0.5500
9:21305012:T:TGacceptor_gain0.5500
9:21304546:TTAA:Tdonor_gain0.5400
9:21304581:A:Cdonor_gain0.5400
9:21304614:TGAA:Tdonor_gain0.5400
9:21304521:C:Adonor_gain0.5300
9:21304631:A:Cdonor_gain0.5200
9:21304911:G:Cdonor_gain0.5200
9:21304956:C:Adonor_gain0.5200
9:21304829:ACAGT:Adonor_gain0.5100
9:21304830:CA:Cdonor_gain0.5100
9:21304830:CAGTC:Cdonor_gain0.5100
9:21304845:C:CTdonor_gain0.5100
9:21304955:T:Cdonor_gain0.5100
9:21305122:T:TAdonor_gain0.5100

AlphaMissense

1256 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
9:21304816:A:CF147L0.939
9:21304816:A:TF147L0.939
9:21304818:A:GF147L0.939
9:21305080:A:CF59L0.907
9:21305080:A:TF59L0.907
9:21305082:A:GF59L0.907
9:21304765:C:AW164C0.866
9:21304765:C:GW164C0.866
9:21304984:G:CF91L0.817
9:21304984:G:TF91L0.817
9:21304986:A:GF91L0.817
9:21304910:A:GL116P0.760
9:21304957:C:AW100C0.755
9:21304957:C:GW100C0.755
9:21304820:T:GY146S0.750
9:21304817:A:GF147S0.748
9:21304757:A:TV167D0.741
9:21304753:T:AR168S0.719
9:21304753:T:GR168S0.719
9:21304796:A:GL154P0.716
9:21304769:G:TA163E0.715
9:21305081:A:CF59C0.714
9:21304767:A:GW164R0.709
9:21304767:A:TW164R0.709
9:21305101:G:CC52W0.707
9:21304821:A:GY146H0.703
9:21304800:A:CY153D0.701
9:21304771:A:CC162W0.699
9:21304817:A:CF147C0.699
9:21304820:T:CY146C0.698

dbSNP variants (sampled 300 via entrez): RS1000359945 (9:21306843 A>G), RS1000372993 (9:21306675 C>G,T), RS1000719546 (9:21304317 T>A), RS1001910319 (9:21306145 G>A,T), RS1001920143 (9:21305905 TATTAAA>T), RS1002681418 (9:21306553 G>A), RS1002697699 (9:21303885 T>C), RS1003924980 (9:21306419 G>A), RS1006823156 (9:21307166 G>A), RS1007587546 (9:21306780 A>C,G), RS1008217099 (9:21304826 C>G,T), RS1008274474 (9:21305492 C>T), RS1009037732 (9:21304359 G>A), RS1009051844 (9:21304131 G>A,C,T), RS1009975982 (9:21306560 G>A)

Disease associations

OMIM: gene MIM:147565 | disease phenotypes: MIM:303350

GenCC curated gene-disease

Mondo (1): hereditary spastic paraplegia (MONDO:0019064)

Orphanet (1): Hereditary spastic paraplegia (Orphanet:685)

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

0 associations (top):

MeSH disease descriptors (1)

DescriptorNameTree numbers
D015419Spastic Paraplegia, HereditaryC10.500.300.820; C10.574.500.495.820; C10.668.829.800.300.820; C16.131.666.300.820; C16.320.400.375.820

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL3856161 (PROTEIN FAMILY)

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

7 total (human), top 7 by PubMed support.

ChemicalActions (top 5)PubMed papers
apocarotenalincreases expression1
bisphenol Aincreases methylation1
gardiquimoddecreases reaction, increases expression1
theaflavin-3,3’-digallateaffects expression1
Folic Aciddecreases expression1
beta Caroteneincreases expression1
Protein Kinase Inhibitorsdecreases reaction, increases expression1

Clinical trials (associated diseases)

51 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT07542548PHASE4COMPLETEDD-Cycloserine for Serine Palmitoyltransferase Inhibition
NCT03961906PHASE2COMPLETEDPhysiotherapy in Hereditary Spastic Paraplegia
NCT04768166PHASE2COMPLETEDTesting Miglustat Administration in Subjects With Spastic Paraplegia 11
NCT06117020PHASE1COMPLETEDSingle and Multiple Ascending Dose Study of MTR-601 in Healthy Individuals
NCT02604186PHASE2/PHASE3COMPLETEDEffects of Botulinum Toxin Injections in Patients With Hereditary Spastic Paraplegia
NCT05518188PHASE1/PHASE2RECRUITINGMelpida: Recombinant Adeno-associated Virus (serotype 9) Encoding a Codon Optimized Human AP4M1 Transgene (hAP4M1opt)
NCT06948019PHASE1/PHASE2NOT_YET_RECRUITINGSafety and Efficacy of AAV9/AP4B1 (BFB-101) For Patients With AP4B1-related Hereditary Spastic Paraplegia Type 47 (SPG47)
NCT06478238EARLY_PHASE1RECRUITINGCalcium Folinate Treatment of Spastic Paraplegia 56
NCT00023075Not specifiedCOMPLETEDNuclear Magnetic Spectroscopy Imaging to Evaluate Primary Lateral Sclerosis, Hereditary Spastic Paraplegia and Amyotrophic Lateral Sclerosis
NCT00136630Not specifiedCOMPLETEDNatural History, Genetic Bases and Phenotype-genotype Correlations in Autosomal Dominant Spinocerebellar Degenerations
NCT00140829Not specifiedCOMPLETEDSPATAX: Clinical and Genetic Analysis of Cerebellar Ataxias and Spastic Paraplegias
NCT00677768Not specifiedCOMPLETEDValidation of Biomarkers in Amyotrophic Lateral Sclerosis (ALS)
NCT01568658Not specifiedACTIVE_NOT_RECRUITINGGenetic and Physical Study of Childhood Nerve and Muscle Disorders
NCT02327845Not specifiedENROLLING_BY_INVITATIONPhenotype, Genotype & Biomarkers in ALS and Related Disorders
NCT02852278Not specifiedCOMPLETEDA Patient Centric Motor Neuron Disease Activities of Daily Living Scale
NCT02859428Not specifiedTERMINATEDDisease Natural History and Biomarkers of SPG3A, SPG4A, and SPG31
NCT03104088Not specifiedCOMPLETEDStudying Cognition in SPG4
NCT03206190Not specifiedRECRUITINGThe preSPG4 Study - Studying the Prodromal and Early Phase of SPG4
NCT03627416Not specifiedCOMPLETEDRepetitive Transcranial Magnetic Stimulation as Therapy in Hereditary Spastic Paraplegia and Adrenomyeloneuropathy
NCT03981276Not specifiedRECRUITINGPhenotypes, Biomarkers and Pathophysiology in Hereditary Spastic Paraplegias and Related Disorders
NCT04006418Not specifiedRECRUITINGA Registered Cohort Study on Spastic Paraplegia
NCT04180098Not specifiedCOMPLETEDImproving Gait Adaptability in Hereditary Spastic Paraplegia
NCT04256681Not specifiedCOMPLETEDSNAP: Measurement of the Subjective Perception of the Symptom in Hereditary Spastic Paraparesis (HSP)
NCT04712812Not specifiedRECRUITINGRegistry and Natural History Study for Early Onset Hereditary Spastic Paraplegia
NCT04875416Not specifiedACTIVE_NOT_RECRUITINGPhenotype, Genotype and Biomarkers 2
NCT04912609Not specifiedCOMPLETEDTrehalose Administration in Subjects With Spastic Paraplegia 11 (3AL-SPG11)
NCT05354622Not specifiedRECRUITINGHereditary Spastic Paraplegia Genomic Sequencing Initiative (HSPseq)
NCT05373082Not specifiedCOMPLETEDIdentification of Modifying Factors in Hereditary Spastic Paraplegia
NCT05411627Not specifiedWITHDRAWNA Pilot Study of Shockwave Therapy in HSP
NCT05432999Not specifiedCOMPLETEDExtracorporeal Shockwave Therapy for Spasticity in People With Spinal Cord Injury
NCT05613114Not specifiedCOMPLETEDEffect of Dalfampridine in Patients With Hereditary Spastic Paraplegia
NCT05767268Not specifiedCOMPLETEDAssessment of the Psychophysical State During Rehabilitation Treatment With Lokomat
NCT05848271Not specifiedRECRUITINGNatural History Study of Patients with HPDL Mutations
NCT06156813Not specifiedRECRUITINGTurkish Lower-Extremity Motor Activity Log (LE-MAL)
NCT06229626Not specifiedRECRUITINGEvaluation of an Intensive Training Program for Patients with Hereditary Spastic Paraparesis SPG4/Spast
NCT06260982Not specifiedUNKNOWNCognitive Disorders in Hereditary Spastic Paraplegia Type 4
NCT06553976Not specifiedRECRUITINGSpastic Paraplegia - Centers of Excellence Research Network
NCT06572046Not specifiedRECRUITINGSTOP-HSP.Net: a Registry for Hereditary Spastic Paraplegia as an Integration Tool for Future Therapeutic Strategies
NCT06573866Not specifiedRECRUITINGEnhancement of Quality of Work And Life
NCT06680063Not specifiedCOMPLETEDCorrelation Between Clinical Assessment and Neurophysiological Assessment in Spinal Cord Injury

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.