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SRP3097

Sigma-Aldrich

sIL-6 Receptor alpha human

recombinant, expressed in CHO cells, ≥95% (SDS-PAGE), ≥95% (HPLC), suitable for cell culture

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Synonym(s):
B cell stimulatory factor-2, CD126, soluble IL-6 receptor alpha
NACRES:
NA.32

biological source

human

recombinant

expressed in CHO cells

Assay

≥95% (HPLC)
≥95% (SDS-PAGE)

form

lyophilized

potency

≤5.0 ng/mL ED50

mol wt

37.9 kDa

packaging

pkg of 20 μg

technique(s)

cell culture | mammalian: suitable

impurities

<1 EU/μg endotoxin, tested

color

white to off-white

UniProt accession no.

P08887

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... IL6R(3570)

General description

Interleukin-6 (IL-6) mediates its biological effects through the type I IL-6 receptor system that consists of two chains, IL-6Rα and gp130. The IL-6Rα chain is the binding component specific to IL-6; while the gp130 only transmits signals of IL-6 when bound to IL-6Rα. IL-6R has a role in various signaling cascades. The gp130 also can transmit signals from leukemia inhibitory factor (LIF), oncostatin M (OSM), ciliary neurotrophic factor (CNTF), interleukin-11 (IL-11) and cardiotrophin-1 (CT-1) in conjunction with other receptor subunits. The low-affinity binding site for IL-6 is composed of IL-6Rα alone. IL-6Rα is expressed in a wide range of cells including T cells, fibroblasts and macrophages. Soluble IL-6Rα which consists of only the extracellular domain of the IL-6Rα chain, acts as an agonist of IL-6 activity at low concentrations. Recombinant human sIL-6Rα is a 37.6kDa protein consisting of the extracellular domain of the IL-6Rα chain (339 amino acid residues).

Sequence

LAPRRCPAQE VARGVLTSLP GDSVTLTCPG VEPEDNATVH WVLRKPAAGS HPSRWAGMGR RLLLRSVQLH DSGNYSCYRA GRPAGTVHLL VDVPPEEPQL SCFRKSPLSN VVCEWGPRST PSLTTKAVLL VRKFQNSPAE DFQEPCQYSQ ESQKFSCQLA VPEGDSSFYI VSMCVASSVG SKFSKTQTFQ GCGILQPDPP ANITVTAVAR NPRWLSVTWQ DPHSWNSSFY RLRFELRYRA ERSKTFTTWM VKDLQHHCVI HDAWSGLRHV VQLRAQEEFG QGEWSEWSPE AMGTPWTESR SPPAENEVST PMQALTTNKD DDNILFRDSA NATSLPVQD

Physical form

Lyophilized powder.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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CNTF mediates neurotrophic factor secretion and fluid absorption in human retinal pigment epithelium.
Li R
PLoS ONE, 6(9), e23148-e23148 (2011)
Hibi, M., et al.
Cytokine Reference, 1761-1773 (2001)
T Sugita et al.
The Journal of experimental medicine, 171(6), 2001-2009 (1990-06-01)
Two species of the cDNAs encoding murine IL-6-R (one is abnormal and the other authentic) have been cloned from a plasmacytoma cell line, P3U1, and BALB/c mouse spleen cDNA libraries. In the cDNA encoding the abnormal IL-6-R, the region corresponding
Interleukin-6 Receptor Polymorphisms Contribute to the Neurological Status of Korean Patients with Ischemic Stroke.
Kim DH
Journal of Korean Medical Science, 31(3), 430-434 (2016)
Felix Yemanyi et al.
Investigative ophthalmology & visual science, 61(13), 29-29 (2020-11-21)
Lysophosphatidic acid (LPA) and soluble interleukin-6 receptor (sIL6R) are elevated in primary open angle glaucoma (POAG). LPA and IL6 modulate in response to biomechanical stimuli and converge on similar fibrotic phenotypes. Thus, we determined whether LPA and IL6 trans-signaling (IL6/sIL6R)
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