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IFNL1 interferon lambda 1 [ Homo sapiens (human) ]

Gene ID: 282618, updated on 9-Jun-2025
Official Symbol
IFNL1provided by HGNC
Official Full Name
interferon lambda 1provided by HGNC
Primary source
HGNC:HGNC:18363
See related
Ensembl:ENSG00000182393 MIM:607403; AllianceGenome:HGNC:18363
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
IL29; IL-29
Summary
This gene encodes a cytokine distantly related to type I interferons and the IL-10 family. This gene, interleukin 28A (IL28A), and interleukin 28B (IL28B) are three closely related cytokine genes that form a cytokine gene cluster on a chromosomal region mapped to 19q13. Expression of the cytokines encoded by the three genes can be induced by viral infection. All three cytokines have been shown to interact with a heterodimeric class II cytokine receptor that consists of interleukin 10 receptor, beta (IL10RB) and interleukin 28 receptor, alpha (IL28RA). [provided by RefSeq, Jul 2008]
Expression
Low expression observed in reference dataset See more
Orthologs
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See IFNL1 in Genome Data Viewer
Location:
19q13.2
Exon count:
5
Annotation release Status Assembly Chr Location
RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 19 NC_000019.10 (39296407..39298673)
RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 19 NC_060943.1 (42100680..42102942)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 19 NC_000019.9 (39787047..39789313)

Chromosome 19 - NC_000019.10Genomic Context describing neighboring genes Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:39755018-39755596 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:39755597-39756176 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:39756177-39756754 Neighboring gene interferon lambda 4 pseudogene 1 Neighboring gene interferon lambda 2 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:39798467-39798968 Neighboring gene leucine rich repeat and fibronectin type III domain containing 1 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 10596 Neighboring gene glia maturation factor gamma

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
Products Interactant Other Gene Complex Source Pubs Description

Markers

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables cytokine activity IEA
Inferred from Electronic Annotation
more info
 
enables interleukin-28 receptor binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables signaling receptor binding IBA
Inferred from Biological aspect of Ancestor
more info
 
enables signaling receptor binding IDA
Inferred from Direct Assay
more info
PubMed 
Process Evidence Code Pubs
involved_in cell surface receptor signaling pathway via JAK-STAT IEA
Inferred from Electronic Annotation
more info
 
involved_in cellular response to virus NAS
Non-traceable Author Statement
more info
PubMed 
involved_in defense response to virus IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in defense response to virus IDA
Inferred from Direct Assay
more info
PubMed 
involved_in defense response to virus IEA
Inferred from Electronic Annotation
more info
 
involved_in innate immune response IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in negative regulation of DNA-templated transcription IDA
Inferred from Direct Assay
more info
PubMed 
involved_in negative regulation of T cell differentiation IDA
Inferred from Direct Assay
more info
PubMed 
involved_in negative regulation of cell population proliferation IDA
Inferred from Direct Assay
more info
PubMed 
involved_in negative regulation of interleukin-13 production IDA
Inferred from Direct Assay
more info
PubMed 
involved_in negative regulation of interleukin-5 production IDA
Inferred from Direct Assay
more info
PubMed 
involved_in negative regulation of memory T cell differentiation IDA
Inferred from Direct Assay
more info
PubMed 
involved_in negative regulation of type 2 immune response IDA
Inferred from Direct Assay
more info
PubMed 
involved_in positive regulation of DNA-templated transcription IDA
Inferred from Direct Assay
more info
PubMed 
involved_in positive regulation of MHC class I biosynthetic process IDA
Inferred from Direct Assay
more info
PubMed 
involved_in positive regulation of immune response IEA
Inferred from Electronic Annotation
more info
 
involved_in positive regulation of immune response TAS
Traceable Author Statement
more info
PubMed 
involved_in positive regulation of receptor signaling pathway via JAK-STAT IDA
Inferred from Direct Assay
more info
PubMed 
involved_in positive regulation of type II interferon production IDA
Inferred from Direct Assay
more info
PubMed 
involved_in positive regulation of tyrosine phosphorylation of STAT protein IDA
Inferred from Direct Assay
more info
PubMed 
involved_in type III interferon-mediated signaling pathway NAS
Non-traceable Author Statement
more info
PubMed 
Component Evidence Code Pubs
located_in extracellular region IDA
Inferred from Direct Assay
more info
PubMed 
located_in extracellular region IEA
Inferred from Electronic Annotation
more info
 
located_in extracellular region TAS
Traceable Author Statement
more info
 
is_active_in extracellular space IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in extracellular space IEA
Inferred from Electronic Annotation
more info
 
part_of interleukin-28 receptor complex IDA
Inferred from Direct Assay
more info
PubMed 
Preferred Names
interferon lambda-1
Names
IFN-lambda-1
cytokine Zcyto21
interleukin 29 (interferon, lambda 1)
interleukin-29

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_172140.2NP_742152.1  interferon lambda-1 precursor

    See identical proteins and their annotated locations for NP_742152.1

    Status: REVIEWED

    Source sequence(s)
    AC011445, AY129150
    Consensus CDS
    CCDS12531.1
    UniProtKB/Swiss-Prot
    A0AV25, Q17R34, Q8IU54
    UniProtKB/TrEMBL
    A0A7R8C391, G9C945
    Related
    ENSP00000329991.1, ENST00000333625.3
    Conserved Domains (1) summary
    pfam15177
    Location:31185
    IL28A; Interleukin-28A

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000019.10 Reference GRCh38.p14 Primary Assembly

    Range
    39296407..39298673
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Reference GRCh38.p14 PATCHES

Genomic

  1. NW_025791808.1 Reference GRCh38.p14 PATCHES

    Range
    76789..79055
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060943.1 Alternate T2T-CHM13v2.0

    Range
    42100680..42102942
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)