UniProtKB - P10145 (IL8_HUMAN)
Protein
Interleukin-8
Gene
CXCL8
Organism
Homo sapiens (Human)
Status
Functioni
IL-8 is a chemotactic factor that attracts neutrophils, basophils, and T-cells, but not monocytes. It is also involved in neutrophil activation. It is released from several cell types in response to an inflammatory stimulus. IL-8(6-77) has a 5-10-fold higher activity on neutrophil activation, IL-8(5-77) has increased activity on neutrophil activation and IL-8(7-77) has a higher affinity to receptors CXCR1 and CXCR2 as compared to IL-8(1-77), respectively.3 Publications
GO - Molecular functioni
- chemokine activity Source: UniProtKB
- CXCR chemokine receptor binding Source: GO_Central
- interleukin-8 receptor binding Source: UniProtKB
GO - Biological processi
- angiogenesis Source: UniProtKB
- antimicrobial humoral immune response mediated by antimicrobial peptide Source: UniProtKB
- calcium-mediated signaling Source: UniProtKB
- cell cycle arrest Source: UniProtKB
- cellular response to fibroblast growth factor stimulus Source: UniProtKB
- cellular response to interleukin-1 Source: UniProtKB
- cellular response to lipopolysaccharide Source: BHF-UCL
- cellular response to tumor necrosis factor Source: UniProtKB
- chemokine-mediated signaling pathway Source: GO_Central
- chemotaxis Source: UniProtKB
- cytokine-mediated signaling pathway Source: Reactome
- embryonic digestive tract development Source: DFLAT
- G protein-coupled receptor signaling pathway Source: Reactome
- immune response Source: GO_Central
- induction of positive chemotaxis Source: UniProtKB
- inflammatory response Source: GO_Central
- intracellular signal transduction Source: UniProtKB
- killing of cells of other organism Source: UniProtKB
- leukocyte chemotaxis Source: GO_Central
- negative regulation of cell adhesion molecule production Source: ARUK-UCL
- negative regulation of cell population proliferation Source: ProtInc
- negative regulation of gene expression Source: ARUK-UCL
- negative regulation of G protein-coupled receptor signaling pathway Source: UniProtKB
- neutrophil activation Source: UniProtKB
- neutrophil chemotaxis Source: UniProtKB
- PERK-mediated unfolded protein response Source: Reactome
- positive regulation of angiogenesis Source: CACAO
- positive regulation of cellular biosynthetic process Source: ARUK-UCL
- positive regulation of gene expression Source: ARUK-UCL
- positive regulation of neutrophil chemotaxis Source: BHF-UCL
- receptor internalization Source: UniProtKB
- regulation of cell adhesion Source: UniProtKB
- regulation of entry of bacterium into host cell Source: AgBase
- regulation of single stranded viral RNA replication via double stranded DNA intermediate Source: UniProtKB
- response to endoplasmic reticulum stress Source: UniProtKB
- response to molecule of bacterial origin Source: BHF-UCL
- signal transduction Source: ProtInc
Keywordsi
Molecular function | Cytokine |
Biological process | Chemotaxis, Inflammatory response |
Enzyme and pathway databases
PathwayCommonsi | P10145 |
Reactomei | R-HSA-2559582, Senescence-Associated Secretory Phenotype (SASP) R-HSA-375276, Peptide ligand-binding receptors R-HSA-380108, Chemokine receptors bind chemokines R-HSA-380994, ATF4 activates genes in response to endoplasmic reticulum stress R-HSA-418594, G alpha (i) signalling events R-HSA-6783783, Interleukin-10 signaling R-HSA-6785807, Interleukin-4 and Interleukin-13 signaling |
SIGNORi | P10145 |
Names & Taxonomyi
Protein namesi | Recommended name: Interleukin-8Short name: IL-8 Alternative name(s): C-X-C motif chemokine 8 Chemokine (C-X-C motif) ligand 8 Emoctakin Granulocyte chemotactic protein 1 Short name: GCP-1 Monocyte-derived neutrophil chemotactic factor Short name: MDNCF Monocyte-derived neutrophil-activating peptide Short name: MONAP Neutrophil-activating protein 1 Short name: NAP-1 Protein 3-10C T-cell chemotactic factor Cleaved into the following 7 chains: Alternative name(s): GCP/IL-8 protein IV IL8/NAP1 form I Alternative name(s): (Ala-IL-8)77 GCP/IL-8 protein II IL-8(1-77) IL8/NAP1 form II MDNCF-b Alternative name(s): (Ser-IL-8)72 GCP/IL-8 protein I IL8/NAP1 form III Lymphocyte-derived neutrophil-activating factor Short name: LYNAP MDNCF-c Neutrophil-activating factor Short name: NAF Alternative name(s): GCP/IL-8 protein V IL8/NAP1 form IV Alternative name(s): GCP/IL-8 protein VI IL8/NAP1 form V Alternative name(s): GCP/IL-8 protein III IL8/NAP1 form VI |
Gene namesi | Name:CXCL8 Synonyms:IL8 |
Organismi | Homo sapiens (Human) |
Taxonomic identifieri | 9606 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Proteomesi |
|
Organism-specific databases
EuPathDBi | HostDB:ENSG00000169429.10 |
HGNCi | HGNC:6025, CXCL8 |
MIMi | 146930, gene |
neXtProti | NX_P10145 |
Subcellular locationi
Extracellular region or secreted
Extracellular region or secreted
- extracellular region Source: Reactome
- extracellular space Source: GO_Central
Keywords - Cellular componenti
SecretedPathology & Biotechi
Organism-specific databases
DisGeNETi | 3576 |
OpenTargetsi | ENSG00000169429 |
PharmGKBi | PA29841 |
Miscellaneous databases
Pharosi | P10145, Tchem |
Chemistry databases
ChEMBLi | CHEMBL2157 |
DrugBanki | DB05434, ABT-510 DB05484, MDX-018 DB05855, Rivanicline DB06083, Tapinarof |
DrugCentrali | P10145 |
Polymorphism and mutation databases
BioMutai | CXCL8 |
DMDMi | 124359 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 20 | 3 PublicationsAdd BLAST | 20 | |
ChainiPRO_0000005126 | 21 – 99 | MDNCF-aAdd BLAST | 79 | |
ChainiPRO_0000005127 | 23 – 99 | Interleukin-8Add BLAST | 77 | |
ChainiPRO_0000041948 | 27 – 99 | IL-8(5-77)Add BLAST | 73 | |
ChainiPRO_0000005128 | 28 – 99 | IL-8(6-77)Add BLAST | 72 | |
ChainiPRO_0000005129 | 29 – 99 | IL-8(7-77)Add BLAST | 71 | |
ChainiPRO_0000005130 | 30 – 99 | IL-8(8-77)Add BLAST | 70 | |
ChainiPRO_0000005131 | 31 – 99 | IL-8(9-77)Add BLAST | 69 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 27 | Citrulline2 Publications | 1 | |
Disulfide bondi | 34 ↔ 61 | |||
Disulfide bondi | 36 ↔ 77 |
Post-translational modificationi
Several N-terminal processed forms are produced by proteolytic cleavage after secretion from at least peripheral blood monocytes, leukcocytes and endothelial cells. In general, IL-8(1-77) is referred to as interleukin-8. IL-8(6-77) is the most promiment form.6 Publications
Citrullination at Arg-27 prevents proteolysis, and dampens tissue inflammation, it also enhances leukocytosis, possibly through impaired chemokine clearance from the blood circulation.2 Publications
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sitei | 27 – 28 | Cleavage; by thrombinCurated | 2 | |
Sitei | 28 – 29 | Cleavage; by MMP9 | 2 |
Keywords - PTMi
Citrullination, Disulfide bondProteomic databases
EPDi | P10145 |
MassIVEi | P10145 |
PaxDbi | P10145 |
PeptideAtlasi | P10145 |
PRIDEi | P10145 |
Expressioni
Inductioni
By ER stress in a DDIT3/CHOP-dependent manner.1 Publication
Gene expression databases
Bgeei | ENSG00000169429, Expressed in periodontal ligament and 190 other tissues |
ExpressionAtlasi | P10145, baseline and differential |
Genevisiblei | P10145, HS |
Organism-specific databases
HPAi | ENSG00000169429, Group enriched (blood, bone marrow, lung) |
Interactioni
Subunit structurei
Binary interactionsi
Hide detailsP10145
GO - Molecular functioni
- chemokine activity Source: UniProtKB
- CXCR chemokine receptor binding Source: GO_Central
- interleukin-8 receptor binding Source: UniProtKB
Protein-protein interaction databases
BioGRIDi | 109790, 14 interactors |
DIPi | DIP-3778N |
IntActi | P10145, 14 interactors |
STRINGi | 9606.ENSP00000306512 |
Chemistry databases
BindingDBi | P10145 |
Miscellaneous databases
RNActi | P10145, protein |
Structurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
BMRBi | P10145 |
SMRi | P10145 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | P10145 |
Family & Domainsi
Sequence similaritiesi
Belongs to the intercrine alpha (chemokine CxC) family.Curated
Keywords - Domaini
SignalPhylogenomic databases
eggNOGi | ENOG502S7MM, Eukaryota |
GeneTreei | ENSGT00940000160757 |
InParanoidi | P10145 |
OMAi | IGTELRC |
OrthoDBi | 1471901at2759 |
PhylomeDBi | P10145 |
TreeFami | TF333433 |
Family and domain databases
CDDi | cd00273, Chemokine_CXC, 1 hit |
InterProi | View protein in InterPro IPR001089, Chemokine_CXC IPR018048, Chemokine_CXC_CS IPR001811, Chemokine_IL8-like_dom IPR033899, CXC_Chemokine_domain IPR028469, Interleukin-8 IPR036048, Interleukin_8-like_sf |
PANTHERi | PTHR10179, PTHR10179, 1 hit PTHR10179:SF42, PTHR10179:SF42, 1 hit |
Pfami | View protein in Pfam PF00048, IL8, 1 hit |
PRINTSi | PR00437, SMALLCYTKCXC |
SMARTi | View protein in SMART SM00199, SCY, 1 hit |
SUPFAMi | SSF54117, SSF54117, 1 hit |
PROSITEi | View protein in PROSITE PS00471, SMALL_CYTOKINES_CXC, 1 hit |
(1+)i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All
P10145-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MTSKLAVALL AAFLISAALC EGAVLPRSAK ELRCQCIKTY SKPFHPKFIK
60 70 80 90
ELRVIESGPH CANTEIIVKL SDGRELCLDP KENWVQRVVE KFLKRAENS
Computationally mapped potential isoform sequencesi
There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basketC9J4T6 | C9J4T6_HUMAN | Multifunctional fusion protein | CXCL8 | 95 | Annotation score: |
Sequence cautioni
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 53 | R → L AA sequence (PubMed:2659722).Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | M17017 mRNA Translation: AAA35611.1 Y00787 mRNA Translation: CAA68742.1 M28130 Genomic DNA Translation: AAA59158.1 M26383 mRNA Translation: AAA36323.1 D14283 Genomic DNA Translation: BAA03245.1 BT007067 mRNA Translation: AAP35730.1 AK311874 mRNA Translation: BAG34815.1 CR542151 mRNA Translation: CAG46948.1 AF385628 Genomic DNA Translation: AAK60276.1 Sequence problems. CH471057 Genomic DNA Translation: EAX05688.1 BC013615 mRNA Translation: AAH13615.1 Z11686 mRNA Translation: CAA77745.1 AF043337 mRNA Translation: AAK00048.1 Sequence problems. |
CCDSi | CCDS34005.1 |
PIRi | A37034 |
RefSeqi | NP_000575.1, NM_000584.3 |
Genome annotation databases
Ensembli | ENST00000307407; ENSP00000306512; ENSG00000169429 |
GeneIDi | 3576 |
KEGGi | hsa:3576 |
UCSCi | uc003hhe.3, human |
Similar proteinsi
Cross-referencesi
Web resourcesi
Wikipedia Interleukin-8 entry |
SeattleSNPs |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | M17017 mRNA Translation: AAA35611.1 Y00787 mRNA Translation: CAA68742.1 M28130 Genomic DNA Translation: AAA59158.1 M26383 mRNA Translation: AAA36323.1 D14283 Genomic DNA Translation: BAA03245.1 BT007067 mRNA Translation: AAP35730.1 AK311874 mRNA Translation: BAG34815.1 CR542151 mRNA Translation: CAG46948.1 AF385628 Genomic DNA Translation: AAK60276.1 Sequence problems. CH471057 Genomic DNA Translation: EAX05688.1 BC013615 mRNA Translation: AAH13615.1 Z11686 mRNA Translation: CAA77745.1 AF043337 mRNA Translation: AAK00048.1 Sequence problems. |
CCDSi | CCDS34005.1 |
PIRi | A37034 |
RefSeqi | NP_000575.1, NM_000584.3 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
1ICW | X-ray | 2.01 | A/B | 28-99 | [»] | |
1IKL | NMR | - | A | 28-99 | [»] | |
1IKM | NMR | - | A | 28-99 | [»] | |
1IL8 | NMR | - | A/B | 28-99 | [»] | |
1ILP | NMR | - | A/B | 28-99 | [»] | |
1ILQ | NMR | - | A/B | 28-99 | [»] | |
1QE6 | X-ray | 2.35 | A/B/C/D | 28-99 | [»] | |
1ROD | NMR | - | A/B | 28-80 | [»] | |
2IL8 | NMR | - | A/B | 28-99 | [»] | |
3IL8 | X-ray | 2.00 | A | 28-99 | [»] | |
4XDX | X-ray | 0.95 | A | 30-99 | [»] | |
5D14 | X-ray | 1.00 | A | 30-99 | [»] | |
5WDZ | NMR | - | A | 28-93 | [»] | |
6LFM | electron microscopy | 3.50 | D/E | 28-99 | [»] | |
6LFO | electron microscopy | 3.40 | D | 28-92 | [»] | |
6N2U | X-ray | 1.25 | A | 1-99 | [»] | |
BMRBi | P10145 | |||||
SMRi | P10145 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
BioGRIDi | 109790, 14 interactors |
DIPi | DIP-3778N |
IntActi | P10145, 14 interactors |
STRINGi | 9606.ENSP00000306512 |
Chemistry databases
BindingDBi | P10145 |
ChEMBLi | CHEMBL2157 |
DrugBanki | DB05434, ABT-510 DB05484, MDX-018 DB05855, Rivanicline DB06083, Tapinarof |
DrugCentrali | P10145 |
Polymorphism and mutation databases
BioMutai | CXCL8 |
DMDMi | 124359 |
Proteomic databases
EPDi | P10145 |
MassIVEi | P10145 |
PaxDbi | P10145 |
PeptideAtlasi | P10145 |
PRIDEi | P10145 |
Protocols and materials databases
ABCDi | P10145, 14 sequenced antibodies |
Antibodypediai | 13311, 1605 antibodies |
DNASUi | 3576 |
Genome annotation databases
Ensembli | ENST00000307407; ENSP00000306512; ENSG00000169429 |
GeneIDi | 3576 |
KEGGi | hsa:3576 |
UCSCi | uc003hhe.3, human |
Organism-specific databases
CTDi | 3576 |
DisGeNETi | 3576 |
EuPathDBi | HostDB:ENSG00000169429.10 |
GeneCardsi | CXCL8 |
HGNCi | HGNC:6025, CXCL8 |
HPAi | ENSG00000169429, Group enriched (blood, bone marrow, lung) |
MIMi | 146930, gene |
neXtProti | NX_P10145 |
OpenTargetsi | ENSG00000169429 |
PharmGKBi | PA29841 |
GenAtlasi | Search... |
Phylogenomic databases
eggNOGi | ENOG502S7MM, Eukaryota |
GeneTreei | ENSGT00940000160757 |
InParanoidi | P10145 |
OMAi | IGTELRC |
OrthoDBi | 1471901at2759 |
PhylomeDBi | P10145 |
TreeFami | TF333433 |
Enzyme and pathway databases
PathwayCommonsi | P10145 |
Reactomei | R-HSA-2559582, Senescence-Associated Secretory Phenotype (SASP) R-HSA-375276, Peptide ligand-binding receptors R-HSA-380108, Chemokine receptors bind chemokines R-HSA-380994, ATF4 activates genes in response to endoplasmic reticulum stress R-HSA-418594, G alpha (i) signalling events R-HSA-6783783, Interleukin-10 signaling R-HSA-6785807, Interleukin-4 and Interleukin-13 signaling |
SIGNORi | P10145 |
Miscellaneous databases
BioGRID-ORCSi | 3576, 8 hits in 843 CRISPR screens |
ChiTaRSi | CXCL8, human |
EvolutionaryTracei | P10145 |
GeneWikii | Interleukin_8 |
GenomeRNAii | 3576 |
Pharosi | P10145, Tchem |
PROi | PR:P10145 |
RNActi | P10145, protein |
SOURCEi | Search... |
Gene expression databases
Bgeei | ENSG00000169429, Expressed in periodontal ligament and 190 other tissues |
ExpressionAtlasi | P10145, baseline and differential |
Genevisiblei | P10145, HS |
Family and domain databases
CDDi | cd00273, Chemokine_CXC, 1 hit |
InterProi | View protein in InterPro IPR001089, Chemokine_CXC IPR018048, Chemokine_CXC_CS IPR001811, Chemokine_IL8-like_dom IPR033899, CXC_Chemokine_domain IPR028469, Interleukin-8 IPR036048, Interleukin_8-like_sf |
PANTHERi | PTHR10179, PTHR10179, 1 hit PTHR10179:SF42, PTHR10179:SF42, 1 hit |
Pfami | View protein in Pfam PF00048, IL8, 1 hit |
PRINTSi | PR00437, SMALLCYTKCXC |
SMARTi | View protein in SMART SM00199, SCY, 1 hit |
SUPFAMi | SSF54117, SSF54117, 1 hit |
PROSITEi | View protein in PROSITE PS00471, SMALL_CYTOKINES_CXC, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | IL8_HUMAN | |
Accessioni | P10145Primary (citable) accession number: P10145 Secondary accession number(s): B2R4L8 Q9UCS0 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | July 1, 1989 |
Last sequence update: | July 1, 1989 | |
Last modified: | December 2, 2020 | |
This is version 229 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program | |
Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. |
Miscellaneousi
Keywords - Technical termi
3D-structure, Direct protein sequencing, Reference proteomeDocuments
- Human chromosome 4
Human chromosome 4: entries, gene names and cross-references to MIM - MIM cross-references
Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot - PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families