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UniProtKB/Swiss-Prot entry Q9NPF7


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name IL23A_HUMAN
Primary accession number Q9NPF7
Secondary accession numbers Q6NZ80 Q6NZ82 Q9H2A5
Integrated into Swiss-Prot on October 31, 2006
Sequence was last modified on October 1, 2000 (Sequence version 1)
Annotations were last modified on    July 22, 2008 (Entry version 47)
Name and origin of the protein
Protein name Interleukin-23 subunit alpha [Precursor]
Synonyms IL-23 subunit alpha
Interleukin-23 subunit p19
IL-23p19
Gene name
Name: IL23A
Synonyms: SGRF
ORFNames: UNQ2498/PRO5798
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, INTERACTION WITH IL12B, SUBCELLULAR LOCATION, AND TISSUE SPECIFICITY.
DOI=10.1016/S1074-7613(00)00070-4; PubMed=11114383 [NCBI, ExPASy, EBI, Israel, Japan]
Oppmann B., Lesley R., Blom B., Timans J.C., Xu Y., Hunte B., Vega F., Yu N., Wang J., Singh K.P., Zonin F., Vaisberg E., Churakova T., Liu M.-R., Gorman D., Wagner J., Zurawski S., Liu Y.-J., Abrams J.S., Moore K.W., Rennick D.M., de Waal-Malefyt R., Hannum C., Bazan J.F., Kastelein R.A.;
"Novel p19 protein engages IL-12p40 to form a cytokine, IL-23, with biological activities similar as well as distinct from IL-12.";
Immunity 13:715-725(2000).
[2]
NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA].
TISSUE=Spleen;
Hirata Y., Kosuge Y.;
"SGRF; a novel member of the IL-6/G-CSF family.";
Submitted (JUL-1999) to the EMBL/GenBank/DDBJ databases.
[3]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
DOI=10.1101/gr.1293003; PubMed=12975309 [NCBI, ExPASy, EBI, Israel, Japan]
Clark H.F., Gurney A.L., Abaya E., Baker K., Baldwin D.T., Brush J., Chen J., Chow B., Chui C., Crowley C., Currell B., Deuel B., Dowd P., Eaton D., Foster J.S., Grimaldi C., Gu Q., Hass P.E., Heldens S., Huang A., Kim H.S., Klimowski L., Jin Y., Johnson S., Lee J., Lewis L., Liao D., Mark M.R., Robbie E., Sanchez C., Schoenfeld J., Seshagiri S., Simmons L., Singh J., Smith V., Stinson J., Vagts A., Vandlen R.L., Watanabe C., Wieand D., Woods K., Xie M.-H., Yansura D.G., Yi S., Yu G., Yuan J., Zhang M., Zhang Z., Goddard A.D., Wood W.I., Godowski P.J., Gray A.M.;
"The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment.";
Genome Res. 13:2265-2270(2003).
[4]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[5]
FUNCTION, AND INTERACTION WITH IL12RB1 AND IL23R.
PubMed=12023369 [NCBI, ExPASy, EBI, Israel, Japan]
Parham C., Chirica M., Timans J., Vaisberg E., Travis M., Cheung J., Pflanz S., Zhang R., Singh K.P., Vega F., To W., Wagner J., O'Farrell A.-M., McClanahan T.K., Zurawski S., Hannum C., Gorman D., Rennick D.M., Kastelein R.A., de Waal Malefyt R., Moore K.W.;
"A receptor for the heterodimeric cytokine IL-23 is composed of IL-12Rbeta1 and a novel cytokine receptor subunit, IL-23R.";
J. Immunol. 168:5699-5708(2002).
[6]
INDUCTION.
PubMed=12421946 [NCBI, ExPASy, EBI, Israel, Japan]
Pirhonen J., Matikainen S., Julkunen I.;
"Regulation of virus-induced IL-12 and IL-23 expression in human macrophages.";
J. Immunol. 169:5673-5678(2002).
[7]
INDUCTION.
DOI=10.1002/eji.200324815; PubMed=15114670 [NCBI, ExPASy, EBI, Israel, Japan]
Smits H.H., van Beelen A.J., Hessle C., Westland R., de Jong E., Soeteman E., Wold A., Wierenga E.A., Kapsenberg M.L.;
"Commensal Gram-negative bacteria prime human dendritic cells for enhanced IL-23 and IL-27 expression and enhanced Th1 development.";
Eur. J. Immunol. 34:1371-1380(2004).
[8]
INDUCTION.
DOI=10.1182/blood-2004-05-1718; PubMed=15486065 [NCBI, ExPASy, EBI, Israel, Japan]
Schnurr M., Toy T., Shin A., Wagner M., Cebon J., Maraskovsky E.;
"Extracellular nucleotide signaling by P2 receptors inhibits IL-12 and enhances IL-23 expression in human dendritic cells: a novel role for the cAMP pathway.";
Blood 105:1582-1589(2005).
[9]
INDUCTION.
DOI=10.1128/IAI.73.3.1590-1597.2005; PubMed=15731058 [NCBI, ExPASy, EBI, Israel, Japan]
Fedele G., Stefanelli P., Spensieri F., Fazio C., Mastrantonio P., Ausiello C.M.;
"Bordetella pertussis-infected human monocyte-derived dendritic cells undergo maturation and induce Th1 polarization and interleukin-23 expression.";
Infect. Immun. 73:1590-1597(2005).
[10]
DEVELOPMENTAL STAGE.
DOI=10.1002/eji.200535467; PubMed=16342235 [NCBI, ExPASy, EBI, Israel, Japan]
Vanden Eijnden S., Goriely S., De Wit D., Goldman M., Willems F.;
"Preferential production of the IL-12(p40)/IL-23(p19) heterodimer by dendritic cells from human newborns.";
Eur. J. Immunol. 36:21-26(2006).
[11]
FUNCTION, INDUCTION, AND TISSUE SPECIFICITY.
PubMed=16424222 [NCBI, ExPASy, EBI, Israel, Japan]
Piskin G., Sylva-Steenland R.M.R., Bos J.D., Teunissen M.B.M.;
"In vitro and in situ expression of IL-23 by keratinocytes in healthy skin and psoriasis lesions: enhanced expression in psoriatic skin.";
J. Immunol. 176:1908-1915(2006).
[12]
INDUCTION.
PubMed=16751425 [NCBI, ExPASy, EBI, Israel, Japan]
Vaknin-Dembinsky A., Balashov K., Weiner H.L.;
"IL-23 is increased in dendritic cells in multiple sclerosis and down-regulation of IL-23 by antisense oligos increases dendritic cell IL-10 production.";
J. Immunol. 176:7768-7774(2006).
[13]
INDUCTION.
DOI=10.1038/nature04808; PubMed=16688182 [NCBI, ExPASy, EBI, Israel, Japan]
Langowski J.L., Zhang X., Wu L., Mattson J.D., Chen T., Smith K., Basham B., McClanahan T.K., Kastelein R.A., Oft M.;
"IL-23 promotes tumour incidence and growth.";
Nature 442:461-465(2006).
Comments
  • FUNCTION: Associates with IL12B to form the IL-23 interleukin, an heterodimeric cytokine which functions in innate and adaptive immunity. IL-23 may constitute with IL-17 an acute response to infection in peripheral tissues. IL-23 binds to an heterodimeric receptor complex composed of IL12RB1 and IL23R, activates the Jak-Stat signaling cascade, stimulates memory rather than naive T-cells and promotes production of proinflammatory cytokines. IL-23 induces autoimmune inflammation and thus may be responsible for autoimmune inflammatory diseases and may be important for tumorigenesis.
  • SUBUNIT: Heterodimer with IL12B; disulfide-linked. The heterodimer is known as interleukin IL-23.
  • SUBCELLULAR LOCATION: Secreted. Note=Secreted upon association with IL12B.
  • TISSUE SPECIFICITY: Secreted by activated dendritic and phagocytic cells and keratinocytes. Also expressed by dermal Langerhans cells (at protein level).
  • DEVELOPMENTAL STAGE: Expressed by newborns dendritic cells.
  • INDUCTION: Up-regulated by a wide array of pathogens and pathogen-products together with self-signals for danger or injury. Up-regulated in psoriatic dermal tissues, in dendritic cells of multiple sclerosis patients and in tumors.
  • SIMILARITY: Belongs to the IL-6 superfamily.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AF301620; AAG37232.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AB030000; BAA93686.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AB030001; BAA93687.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AY359083; AAQ89442.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC066267; AAH66267.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC066268; AAH66268.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC066269; AAH66269.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC067511; AAH67511.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC067512; AAH67512.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC067513; AAH67513.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq NP_057668.1; -.
UniGene Hs.654496
3D structure databases
ModBase Q9NPF7.
Organism-specific databases
HGNC HGNC:15488; IL23A.
GenAtlas IL23A.
HPA HPA001554; -.
MIM 605580; gene. [NCBI / EBI]
PharmGKB PA29824; -.
GeneCards Q9NPF7.
Gene expression databases
CleanEx HS_IL23A; -.
GermOnline ENSG00000110944; Homo sapiens.
Family and domain databases
InterPro IPR012351; 4_helix_cytokine_core.
IPR010831; IL23A.
IPR003573; IL6_MGF_GCSF.
Graphical view of domain structure.
Gene3D G3DSA:1.20.1250.10; 4_helix_cytokine_core; 1.
PANTHER PTHR15947; IL23A; 1.
Pfam PF00489; IL6; 1.
Pfam graphical view of domain structure.
BLOCKS Q9NPF7.
Genome annotation databases
Ensembl ENSG00000110944; Homo sapiens. [Contig view]
GeneID 51561; -.
KEGG hsa:51561; -.
Phylogenomic databases
HOVERGEN Q9NPF7; -.
Other
SOURCE IL23A; Homo sapiens.
ProtoNet Q9NPF7.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Antiviral defense; Cytokine; Immune response; Inflammatory response; Innate immunity; Secreted; Signal; Tissue remodeling.
Features
SEVIEWER logo Feature table viewer
KeyFrom   To Length Description FTId
SIGNAL   1    19  19     Potential. 
CHAIN   20   189  170     Interleukin-23 subunit alpha. PRO_0000259488
CONFLICT   122   122        G -> A (in Ref. 1; AAG37232). 
CONFLICT   147   147        I -> M (in Ref. 4; AAH66267). 
CONFLICT   168   168        S -> N (in Ref. 4; AAH66267). 
CONFLICT   173   173        V -> A (in Ref. 4; AAH66269). 
CONFLICT   189   189        P -> L (in Ref. 4; AAH66269). 
Sequence information
Length: 189 AA [This is the length of the unprocessed precursor] Molecular weight: 20730 Da [This is the MW of the unprocessed precursor] CRC64: 51B5C0F188EC1B9F [This is a checksum on the sequence]
        10         20         30         40         50         60 
MLGSRAVMLL LLLPWTAQGR AVPGGSSPAW TQCQQLSQKL CTLAWSAHPL VGHMDLREEG 

        70         80         90        100        110        120 
DEETTNDVPH IQCGDGCDPQ GLRDNSQFCL QRIHQGLIFY EKLLGSDIFT GEPSLLPDSP 

       130        140        150        160        170        180 
VGQLHASLLG LSQLLQPEGH HWETQQIPSL SPSQPWQRLL LRFKILRSLQ AFVAVAARVF 


AHGAATLSP 

Q9NPF7 in FASTA format

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