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IL9
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  • IL9
PROTEIN SUMMARY SECTION OVERVIEW GENE INFORMATION RNA DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

IL9
Synonyms HP40, IL-9, P40
Gene descriptioni

Full gene name according to HGNC.

Interleukin 9
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Cancer-related genes
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Secreted
Protein evidence Evidence at transcript level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 5
Cytoband q31.1
Chromosome location (bp) 135892246 - 135895841
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

1
Ensembl ENSG00000145839 (version 109)
Entrez gene 3578
HGNC HGNC:6029
UniProt P15248 (UniProt - Evidence at transcript level)
neXtProt NX_P15248
GeneCards IL9
Antibodypedia IL9 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Multifunctional cytokine secreted mainly by T-helper 2 lymphocytes and also mast cells or NKT cells that plays important roles in the immune response against parasites 1. Affects intestinal epithelial permeability and adaptive immunity 2. In addition, induces the differentiation of specific T-cell subsets such as IL-17 producing helper T-cells (TH17) and also proliferation and differentiation of mast cells. Mechanistically, exerts its biological effects through a receptor composed of IL9R subunit and a signal transducing subunit IL2RG. Receptor stimulation results in the rapid activation of JAK1 and JAK3 kinase activities leading to STAT1, STAT3 and STAT5-mediated transcriptional programs. Induction of differentiation genes seems to be mediated by STAT1 alone, while protection of cells from apoptosis depends on STAT3 and STAT5.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Cytokine, Growth factor
Gene summary (Entrez)i

Useful information about the gene from Entrez

The protein encoded by this gene is a cytokine that acts as a regulator of a variety of hematopoietic cells. This cytokine stimulates cell proliferation and prevents apoptosis. It functions through the interleukin 9 receptor (IL9R), which activates different signal transducer and activator (STAT) proteins and thus connects this cytokine to various biological processes. The gene encoding this cytokine has been identified as a candidate gene for asthma. Genetic studies on a mouse model of asthma demonstrated that this cytokine is a determining factor in the pathogenesis of bronchial hyperresponsiveness. [provided by RefSeq, Jul 2008]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The ENSP identifier links to the Ensembl website protein summary, while the ENST identifier links to the Ensembl website transcript summary for the selected splice variant. The data in the UniProt column can be expanded to show links to all matching UniProt identifiers for this protein.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The Gene Ontology terms assigned to this protein are listed if expanding the Gene ontology column. The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide (according to a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0, and Phobius) and the number of predicted transmembrane region(s) (according to MDM) are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
IL9-201
ENSP00000274520
ENST00000274520
P15248
[Direct mapping] Interleukin-9
Show all
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
Cancer-related genes
   Candidate cancer biomarkers
Mapped to neXtProt
   neXtProt - Evidence at transcript level
Show all
GO:0005125 [cytokine activity]
GO:0005126 [cytokine receptor binding]
GO:0005140 [interleukin-9 receptor binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006954 [inflammatory response]
GO:0006955 [immune response]
GO:0007165 [signal transduction]
GO:0008083 [growth factor activity]
GO:0008284 [positive regulation of cell population proliferation]
GO:0016064 [immunoglobulin mediated immune response]
GO:0030183 [B cell differentiation]
GO:0030307 [positive regulation of cell growth]
GO:0032754 [positive regulation of interleukin-5 production]
GO:0042100 [B cell proliferation]
GO:0046425 [regulation of receptor signaling pathway via JAK-STAT]
GO:0050730 [regulation of peptidyl-tyrosine phosphorylation]
GO:0050896 [response to stimulus]
GO:2001268 [negative regulation of cysteine-type endopeptidase activity involved in apoptotic signaling pathway]
Show all
144 aa
15.9 kDa
Yes 0

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