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Details on Person UniProt:Q9P0M4 IL17C

Class:IdReferenceGeneProduct:56936
_chainChangeLogsignal peptide:1-18 added on Sat February 7 2015;chain:19-197 added on Sat February 7 2015
_displayNameUniProt:Q9P0M4 IL17C
_timestamp2026-02-20 21:50:02
chainsignal peptide:1-18
chain:19-197
checksumBAE0152E18DE7D08
commentFUNCTION Cytokine that plays a crucial role in innate immunity of the epithelium, including to intestinal bacterial pathogens, in an autocrine manner. Stimulates the production of antibacterial peptides and pro-inflammatory molecules for host defense by signaling through the NF-kappa-B and MAPK pathways. Acts synergically with IL22 in inducing the expression of antibacterial peptides, including S100A8, S100A9, REG3A and REG3G. Synergy is also observed with TNF and IL1B in inducing DEFB2 from keratinocytes. Depending on the type of insult, may have both protective and pathogenic properties, either by maintaining epithelial homeostasis after an inflammatory challenge or by promoting inflammatory phenotype. Enhanced IL17C/IL17RE signaling may also lead to greater susceptibility to autoimmune diseases.SUBUNIT Binds to a heterodimer formed by IL17RA and IL17RE.SUBCELLULAR LOCATION Up-regulated by bacterial stimuli, including by lipopolysaccharides (LPS) in gut epithelial cell lines. This up-regulation may be mediated by Toll-like receptors TLR2 and TLR5. Up-regulated by various pro-inflammatory cytokines, including TNF, IL1B and IL17F. Up-regulation by IL17A in colon epithelial cells has been observed in some cases (PubMed:21993849), but not in others (PubMed:21993848).SIMILARITY Belongs to the IL-17 family.ONLINE INFORMATION Interleukin-17 entry
descriptionrecommendedName: Interleukin-17C shortName: IL-17C alternativeName: Cytokine CX2
geneNameIL17C
UNQ561/PRO1122
identifierQ9P0M4
isSequenceChangedFALSE
keywordCytokine
Disulfide bond
Inflammatory response
Proteomics identification
Reference proteome
Secreted
Signal
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9983091] Weiser, Joel, 2026-02-20
nameIL17C
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:9004168] ENSEMBL:ENSG00000124391 IL17C [Homo sapiens]
secondaryIdentifierIL17C_HUMAN
Q3MIG8
Q9HC75
sequenceLength197
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:447182] IL17C [extracellular region] [Homo sapiens]
[EntityWithAccessionedSequence:8951050] IL17C [cytosol] [Homo sapiens]
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