Glycoprotein 130 (also known as gp130, IL6ST, IL6R-beta or CD130) is a transmembrane protein which is the founding member of the class of tall cytokine receptors. It forms one subunit of the type I cytokine receptor within the IL-6 receptor family. It is often referred to as the common gp130 subunit, and is important for signal transduction following cytokine engagement. As with other type I cytokine receptors, gp130 possesses a WSXWS amino acid motif that ensures correct protein folding and ligand binding. It interacts with Janus kinases to elicit an intracellular signal following receptor interaction with its ligand. Structurally, gp130 is composed of five fibronectin type-III domains and one immunoglobulin-like C2-type (immunoglobulin-like) domain in its extracellular portion.^[5][6]

Quick Facts IL6ST, Available structures ...

IL6ST
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1BJ8, 1BQU, 1I1R, 1P9M, 1PVH, 3L5H, 3L5I, 3L5J,%%s1BJ8, 1BQU, 1I1R, 1P9M, 1PVH, 3L5H, 3L5I, 3L5J, 1N2Q
Identifiers
Aliases	IL6ST, CD130, CDW130, GP130, IL-6RB, interleukin 6 signal transducer
External IDs	OMIM: 600694; MGI: 96560; HomoloGene: 1645; GeneCards: IL6ST; OMA:IL6ST - orthologs
Gene location (Human) Chr. Chromosome 5 (human)[1] Band 5q11.2 Start 55,935,095 bp[1] End 55,994,993 bp[1]
Gene location (Mouse) Chr. Chromosome 13 (mouse)[2] Band 13 D2.2|13 63.73 cM Start 112,600,604 bp[2] End 112,646,620 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in parietal pleura germinal epithelium visceral pleura seminal vesicula caput epididymis tail of epididymis superficial temporal artery pericardium lactiferous duct lower lobe of lung Top expressed in decidua skin of external ear uterus mesenteric lymph nodes right lung right lung lobe gastrula carotid body urinary bladder cardiac muscle tissue of left ventricle More reference expression data BioGPS n/a
Gene ontology Molecular function interleukin-11 binding leukemia inhibitory factor receptor activity ciliary neurotrophic factor receptor binding interleukin-27 receptor activity ciliary neurotrophic factor receptor activity cytokine receptor activity protein homodimerization activity interleukin-6 receptor binding growth factor binding interleukin-11 receptor activity oncostatin-M receptor activity interleukin-6 receptor activity interleukin-6 binding protein binding cytokine binding identical protein binding Cellular component extracellular exosome extracellular region integral component of membrane cell body ciliary neurotrophic factor receptor complex membrane neuronal cell body dendrite plasma membrane interleukin-6 receptor complex oncostatin-M receptor complex external side of plasma membrane extracellular space receptor complex Biological process regulation of Notch signaling pathway positive regulation of cardiac muscle hypertrophy negative regulation of apoptotic process negative regulation of interleukin-6-mediated signaling pathway interleukin-11-mediated signaling pathway response to cytokine oncostatin-M-mediated signaling pathway signal transduction interleukin-27-mediated signaling pathway positive regulation of adaptive immune response ciliary neurotrophic factor-mediated signaling pathway leukemia inhibitory factor signaling pathway viral process positive regulation of T cell proliferation interleukin-6-mediated signaling pathway positive regulation of acute inflammatory response cytokine-mediated signaling pathway positive regulation of astrocyte differentiation positive regulation of osteoblast differentiation glycogen metabolic process positive regulation of vascular endothelial growth factor production positive regulation of cell population proliferation positive regulation of tyrosine phosphorylation of STAT protein interleukin-12-mediated signaling pathway interleukin-35-mediated signaling pathway Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 3572 16195 Ensembl ENSG00000134352 ENSMUSG00000021756 UniProt P40189 Q17RA0 Q00560 RefSeq (mRNA) NM_001190981 NM_002184 NM_175767 NM_010560 RefSeq (protein) NP_001177910 NP_002175 NP_786943 NP_001351204 NP_001351205 NP_001351206 NP_001351207 NP_001351208 NP_002175.2 NP_001177910.1 NP_034690 Location (UCSC) Chr 5: 55.94 – 55.99 Mb Chr 13: 112.6 – 112.65 Mb PubMed search [3] [4]
Wikidata
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The members of the IL-6 receptor family all complex with gp130 for signal transduction. For example, IL-6 binds to the IL-6 Receptor. The complex of these two proteins then associates with gp130. This complex of 3 proteins then homodimerizes to form a hexameric complex which can produce downstream signals.^[7] There are many other proteins which associate with gp130, such as cardiotrophin 1 (CT-1), leukemia inhibitory factor (LIF), ciliary neurotrophic factor (CNTF), oncostatin M (OSM), and IL-11.^[8] There are also several other proteins which have structural similarity to gp130 and contain the WSXWS motif and preserved cysteine residues. Members of this group include LIF-R, OSM-R, and G-CSF-R.

gp130 is an important part of many different types of signaling complexes. Inactivation of gp130 is lethal to mice.^[9] Homozygous mice who are born show a number of defects including impaired development of the ventricular myocardium. Haematopoietic effects included reduced numbers of stem cells in the spleen and liver.

gp130 has no intrinsic tyrosine kinase activity. Instead, it is phosphorylated on tyrosine residues after complexing with other proteins. The phosphorylation leads to association with JAK/Tyk tyrosine kinases and STAT protein transcription factors.^[10] In particular, STAT-3 is activated which leads to the activation of many downstream genes. Other pathways activated include RAS and MAPK signaling.

Glycoprotein 130 has been shown to interact with:

• Grb2,^[11]
• HER2/neu,^[12]
• Janus kinase 1^[13][14][15]
• Leukemia inhibitory factor receptor,^[16][17]
• PTPN11,^[13][18][19]
• SHC1,^[20]
• SOCS3,^[18] and
• TLE1.^[21]