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AB245952

Recombinant human IL-6R protein (Active)

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Recombinant human IL-6R protein (Active) is a Human Fragment protein, in the 20 to 358 aa range, expressed in CHO cells, with >95%, < 1 EU/µg endotoxin level, suitable for SDS-PAGE, FuncS, HPLC.

View Alternative Names

CD126, Interleukin-6 receptor subunit alpha, IL-6 receptor subunit alpha, IL-6R subunit alpha, IL-6R-alpha, IL-6RA, IL-6R 1, Membrane glycoprotein 80, gp80, IL6R

Key facts

Purity

>95% SDS-PAGE

Endotoxin level

< 1 EU/µg

Expression system

CHO cells

Tags

Tag free

Applications

SDS-PAGE, HPLC, FuncS

applications

Biologically active

Yes

Biological activity

Determined by its ability to intensify the IL-6 induced growth inhibition of mouse M1 cells. The expected ED50 is ≤ 5.0 ng/ml, in the presence of 20 ng/ml of rhIL-6.

Accession

P08887

Animal free

No

Carrier free

Yes

Species

Human

Reconstitution

Reconstitute in water

Storage buffer

Constituents: 0.16% Sodium phosphate

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "FuncS": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "HPLC": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Migrates with an apparent molecular mass of approximately 57-70 kDa by SDS-PAGE gel, under reducing conditions.

Sequence info

[{"sequence":"","proteinLength":"Fragment","predictedMolecularWeight":"37.9 kDa","actualMolecularWeight":null,"aminoAcidEnd":358,"aminoAcidStart":20,"nature":"Recombinant","expressionSystem":null,"accessionNumber":"P08887","tags":[]}]

Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
True

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

IL-6R also known as the IL-6 receptor or IL-6R protein is a transmembrane protein with an approximate mass of 80-90 kDa. This receptor is found on the surface of various cells including hepatocytes leukocytes and immune cells like T-cells and macrophages. IL-6R binds to interleukin-6 (IL-6) a cytokine and plays an important role in immune response regulation. The receptor exists in both membrane-bound and soluble forms each contributing to diverse signaling events.
Biological function summary

IL-6 receptor function involves mediating the effects of IL-6 through its interaction with glycoprotein 130 (gp130) forming a signaling complex. This complex initiates intracellular pathways that lead to gene expression changes necessary for immune responses inflammation and hematopoiesis. When IL-6 binds IL-6R the complex formation with gp130 triggers downstream signaling that impacts cell growth differentiation and survival.

Pathways

IL-6R is central to the JAK/STAT signaling pathway one of the two main pathways activated by IL-6 signaling. It's also involved in the MAPK cascade contributing to cellular responses such as proliferation and differentiation. Through these pathways IL-6R interacts with other proteins like JAK kinases and STAT transcription factors coordinating cellular responses to external signals.

IL-6R is associated with inflammatory diseases such as rheumatoid arthritis and certain cancers. In rheumatoid arthritis overexpression of IL-6R leads to persistent inflammation and joint damage. In cancer IL-6/IL-6R signaling promotes tumorigenesis and cancer cell survival through interactions with proteins like STAT3. Understanding these connections aids in developing therapeutic interventions targeting IL-6R in various pathological conditions.

Specifications

Form

Lyophilized

Additional notes

Greater than 95% by HPLC analyses.

General info

Function

Part of the receptor for interleukin 6. Binds to IL6 with low affinity, but does not transduce a signal (PubMed : 28265003). Signal activation necessitate an association with IL6ST. Activation leads to the regulation of the immune response, acute-phase reactions and hematopoiesis (PubMed : 30995492, PubMed : 31235509). The interaction with membrane-bound IL6R and IL6ST stimulates 'classic signaling', the restricted expression of the IL6R limits classic IL6 signaling to only a few tissues such as the liver and some cells of the immune system. Whereas the binding of IL6 and soluble IL6R to IL6ST stimulates 'trans-signaling'. Alternatively, 'cluster signaling' occurs when membrane-bound IL6 : IL6R complexes on transmitter cells activate IL6ST receptors on neighboring receiver cells (Probable).. Isoform 1. Signaling via the membrane-bound IL6R is mostly regenerative and anti-inflammatory (Probable). Drives naive CD4(+) T cells to the Th17 lineage, through 'cluster signaling' by dendritic cells (By similarity).. Isoform 2. Soluble form of IL6 receptor (sIL6R) that acts as an agonist of IL6 activity (PubMed : 21990364). The IL6 : sIL6R complex (hyper-IL6) binds to IL6ST/gp130 on cell surfaces and induces signaling also on cells that do not express membrane-bound IL6R in a process called IL6 'trans-signaling'. sIL6R is causative for the pro-inflammatory properties of IL6 and an important player in the development of chronic inflammatory diseases (PubMed : 21990364). In complex with IL6, is required for induction of VEGF production (PubMed : 12794819). Plays a protective role during liver injury, being required for maintenance of tissue regeneration (By similarity). 'Trans-signaling' in central nervous system regulates energy and glucose homeostasis (By similarity).. Soluble interleukin-6 receptor subunit alpha. Soluble form of IL6 receptor (sIL6R) that acts as an agonist of IL6 activity (PubMed : 21990364). The IL6 : sIL6R complex (hyper-IL6) binds to IL6ST/gp130 on cell surfaces and induces signaling also on cells that do not express membrane-bound IL6R in a process called IL6 'trans-signaling'. sIL6R is causative for the pro-inflammatory properties of IL6 and an important player in the development of chronic inflammatory diseases (PubMed : 21990364). In complex with IL6, is required for induction of VEGF production (PubMed : 12794819). Plays a protective role during liver injury, being required for maintenance of tissue regeneration (By similarity). 'Trans-signaling' in central nervous system regulates energy and glucose homeostasis (By similarity).

Sequence similarities

Belongs to the type I cytokine receptor family. Type 3 subfamily.

Post-translational modifications

A short soluble form is released from the membrane by proteolysis (PubMed:26876177). The sIL6R is formed mostly by limited proteolysis of membrane-bound receptors, a process referred to as ectodomain shedding, but is also directly secreted from the cells after alternative mRNA splicing (PubMed:26876177, PubMed:28060820). mIL6R is cleaved by the proteases ADAM10 and ADAM17 (PubMed:26876177, PubMed:28060820).. Glycosylated. Glycosylation is dispensable for transport, signaling, and cell-surface turnover. Glycosylation at Asn-55 is a protease-regulatory exosite. Glycosylation is required for ADAM17-mediated proteolysis.

Product protocols

Target data

Part of the receptor for interleukin 6. Binds to IL6 with low affinity, but does not transduce a signal (PubMed : 28265003). Signal activation necessitate an association with IL6ST. Activation leads to the regulation of the immune response, acute-phase reactions and hematopoiesis (PubMed : 30995492, PubMed : 31235509). The interaction with membrane-bound IL6R and IL6ST stimulates 'classic signaling', the restricted expression of the IL6R limits classic IL6 signaling to only a few tissues such as the liver and some cells of the immune system. Whereas the binding of IL6 and soluble IL6R to IL6ST stimulates 'trans-signaling'. Alternatively, 'cluster signaling' occurs when membrane-bound IL6 : IL6R complexes on transmitter cells activate IL6ST receptors on neighboring receiver cells (Probable).. Isoform 1. Signaling via the membrane-bound IL6R is mostly regenerative and anti-inflammatory (Probable). Drives naive CD4(+) T cells to the Th17 lineage, through 'cluster signaling' by dendritic cells (By similarity).. Isoform 2. Soluble form of IL6 receptor (sIL6R) that acts as an agonist of IL6 activity (PubMed : 21990364). The IL6 : sIL6R complex (hyper-IL6) binds to IL6ST/gp130 on cell surfaces and induces signaling also on cells that do not express membrane-bound IL6R in a process called IL6 'trans-signaling'. sIL6R is causative for the pro-inflammatory properties of IL6 and an important player in the development of chronic inflammatory diseases (PubMed : 21990364). In complex with IL6, is required for induction of VEGF production (PubMed : 12794819). Plays a protective role during liver injury, being required for maintenance of tissue regeneration (By similarity). 'Trans-signaling' in central nervous system regulates energy and glucose homeostasis (By similarity).. Soluble interleukin-6 receptor subunit alpha. Soluble form of IL6 receptor (sIL6R) that acts as an agonist of IL6 activity (PubMed : 21990364). The IL6 : sIL6R complex (hyper-IL6) binds to IL6ST/gp130 on cell surfaces and induces signaling also on cells that do not express membrane-bound IL6R in a process called IL6 'trans-signaling'. sIL6R is causative for the pro-inflammatory properties of IL6 and an important player in the development of chronic inflammatory diseases (PubMed : 21990364). In complex with IL6, is required for induction of VEGF production (PubMed : 12794819). Plays a protective role during liver injury, being required for maintenance of tissue regeneration (By similarity). 'Trans-signaling' in central nervous system regulates energy and glucose homeostasis (By similarity).
See full target information IL6R

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