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IL21
HPA
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  • IL21
PROTEIN SUMMARY 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.

IL21
Synonyms IL-21, Za11
Gene descriptioni

Full gene name according to HGNC.

Interleukin 21
Protein classi

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

Disease related genes
Human disease related genes
Plasma proteins
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 protein 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 4
Cytoband q27
Chromosome location (bp) 122610108 - 122621066
Number of transcriptsi

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

2
Ensembl ENSG00000138684 (version 109)
Entrez gene 59067
HGNC HGNC:6005
UniProt Q9HBE4 (UniProt - Evidence at protein level)
neXtProt NX_Q9HBE4
GeneCards IL21
Antibodypedia IL21 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Cytokine with immunoregulatory activity. May promote the transition between innate and adaptive immunity. Induces the production of IgG(1) and IgG(3) in B-cells (By similarity). Implicated in the generation and maintenance of T follicular helper (Tfh) cells and the formation of germinal-centers. Together with IL6, control the early generation of Tfh cells and are critical for an effective antibody response to acute viral infection (By similarity). May play a role in proliferation and maturation of natural killer (NK) cells in synergy with IL15. May regulate proliferation of mature B- and T-cells in response to activating stimuli. In synergy with IL15 and IL18 stimulates interferon gamma production in T-cells and NK cells 1, 2. During T-cell mediated immune response may inhibit dendritic cells (DC) activation and maturation (By similarity).... show less
Molecular function (UniProt)i

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

Cytokine
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes a member of the common-gamma chain family of cytokines with immunoregulatory activity. The encoded protein plays a role in both the innate and adaptive immune responses by inducing the differentiation, proliferation and activity of multiple target cells including macrophages, natural killer cells, B cells and cytotoxic T cells. Dysregulation of this gene plays a role in multiple immune-mediated diseases including lupus, psoriasis and chronic inflammatory diseases. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]... 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 Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

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 length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
IL21-201
ENSP00000477555
ENST00000611104
Q9HBE4
[Direct mapping] Interleukin-21
Show all
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   THUMBUP predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
   DeepTMHMM predicted secreted proteins
Plasma proteins
Disease related genes
Human disease related genes
   Endocrine and metabolic diseases
   Diabetes
   Immune system diseases
   Primary immunodeficiency
Mapped to neXtProt
   neXtProt - Evidence at protein level
Show all
GO:0001819 [positive regulation of cytokine production]
GO:0002314 [germinal center B cell differentiation]
GO:0002639 [positive regulation of immunoglobulin production]
GO:0005125 [cytokine activity]
GO:0005126 [cytokine receptor binding]
GO:0005134 [interleukin-2 receptor binding]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006955 [immune response]
GO:0007165 [signal transduction]
GO:0007260 [tyrosine phosphorylation of STAT protein]
GO:0008284 [positive regulation of cell population proliferation]
GO:0030890 [positive regulation of B cell proliferation]
GO:0032729 [positive regulation of interferon-gamma production]
GO:0032740 [positive regulation of interleukin-17 production]
GO:0034105 [positive regulation of tissue remodeling]
GO:0042102 [positive regulation of T cell proliferation]
GO:0042531 [positive regulation of tyrosine phosphorylation of STAT protein]
GO:0045954 [positive regulation of natural killer cell mediated cytotoxicity]
GO:0048469 [cell maturation]
GO:0050729 [positive regulation of inflammatory response]
GO:0050896 [response to stimulus]
GO:0051607 [defense response to virus]
GO:0060255 [regulation of macromolecule metabolic process]
GO:0061470 [T follicular helper cell differentiation]
GO:0098586 [cellular response to virus]
Show all
153 aa
17.6 kDa
Yes 0
IL21-203
ENSP00000497915
ENST00000648588
Q9HBE4
[Direct mapping] Interleukin-21
Show all
A0A224B028
[Target identity:100%; Query identity:100%] Interleukin
Show all
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   THUMBUP predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
   DeepTMHMM predicted secreted proteins
Plasma proteins
Disease related genes
Human disease related genes
   Endocrine and metabolic diseases
   Diabetes
   Immune system diseases
   Primary immunodeficiency
Mapped to neXtProt
   neXtProt - Evidence at protein level
Show all
GO:0001819 [positive regulation of cytokine production]
GO:0002314 [germinal center B cell differentiation]
GO:0002639 [positive regulation of immunoglobulin production]
GO:0005125 [cytokine activity]
GO:0005126 [cytokine receptor binding]
GO:0005134 [interleukin-2 receptor binding]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0006955 [immune response]
GO:0007165 [signal transduction]
GO:0007260 [tyrosine phosphorylation of STAT protein]
GO:0008284 [positive regulation of cell population proliferation]
GO:0030890 [positive regulation of B cell proliferation]
GO:0032729 [positive regulation of interferon-gamma production]
GO:0032740 [positive regulation of interleukin-17 production]
GO:0034105 [positive regulation of tissue remodeling]
GO:0042102 [positive regulation of T cell proliferation]
GO:0042531 [positive regulation of tyrosine phosphorylation of STAT protein]
GO:0045954 [positive regulation of natural killer cell mediated cytotoxicity]
GO:0048469 [cell maturation]
GO:0050729 [positive regulation of inflammatory response]
GO:0050896 [response to stimulus]
GO:0051607 [defense response to virus]
GO:0060255 [regulation of macromolecule metabolic process]
GO:0061470 [T follicular helper cell differentiation]
GO:0098586 [cellular response to virus]
Show all
162 aa
18.7 kDa
Yes 0

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