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I8648

Sigma-Aldrich

Interleukin-15 human

>97% (SDS-PAGE), recombinant, expressed in E. coli, lyophilized powder, suitable for cell culture

Sinónimos:

IL-15

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About This Item

MDL number:
MFCD00675504
UNSPSC Code:
12352202
NACRES:
NA.77

biological source

human

Quality Level

100

recombinant

expressed in E. coli

assay

>97% (SDS-PAGE)

form

lyophilized powder

potency

0.2-4.0 ng/mL EC50

mol wt

antigen predicted mol wt ~12.5 kDa

packaging

pkg of 5 μg

technique(s)

cell culture | mammalian: suitable

impurities

endotoxin, tested

UniProt accession no.

P40933

storage temp.

−20°C

Gene Information

human ... IL15(3600)

Biochem/physiol Actions

IL-15 (interleukin 15) is a proinflammatory pleiotropic cytokine and is a connection between innate and adaptive immune responses. It participates in the proliferation, survival and activation of various lymphocytes lineages. IL-15 works by associating with a high affinity heterotrimeric receptor complex containing IL-15Rα, IL-2/15Rβ and IL-Rγ. It is present in different forms, the soluble form, the hyper IL-15 formed by association between IL-15 receptor α chain and soluble cytokine, and the membrane bound isoform.
Interleukin-15 was first isolated from the supernatant of a cultured simian kidney epithelial cell line. The cDNA encodes a 162 amino acid precursor protein with a 48 amino acid signal peptide that is cleaved to yield a 114 amino acid mature protein. Human IL-15 shares sequence identity with simian (~97%) and murine (~73%). IL-15 competes for binding sites with IL-2, as both IL-2 and IL-15 stimulate the growth of cells through the IL-2 receptor.

Physical form

Lyophilized from 0.2 μm filtered solution in phosphate buffered saline, pH 7.4 with 50 μg bovine serum albumin per 1 μg as a carrier protein.

Analysis Note

Measured in a cell proliferation assay using MO7e human megakaryocytic leukemic cells. The specific activity of Recombinant Human IL-15 is approximately 4.5 x 105 U/μg, which is calibrated against recombinant human IL-15 WHO International Standard (NIBSC code: 95/554).

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Hua Wang et al.
Medical oncology (Northwood, London, England), 32(1), 370-370 (2014-11-28)
Interleukin-15 (IL-15) is a proinflammatory cytokine involved in the proliferation, survival, and activation of multiple lymphocyte lineages. However, the prognostic significance of IL-15 for extranodal NK/T cell lymphoma (ENKTL) has not been well established. We retrospectively analyzed 112 patients with
Jianan Zhu et al.
Frontiers in immunology, 13, 813218-813218 (2022-03-01)
Unexplained recurrent spontaneous abortion (URSA) is believed to be associated with impaired immunosuppression at the maternal-fetal interface, but the detailed molecular mechanism remains unclear. The ATP-adenosine metabolic pathway regulated by CD39/CD73 has recently been recognized to be important in immunosuppression.
K H Grabstein et al.
Science (New York, N.Y.), 264(5161), 965-968 (1994-05-13)
A cytokine was identified that stimulated the proliferation of T lymphocytes, and a complementary DNA clone encoding this new T cell growth factor was isolated. The cytokine, designated interleukin-15 (IL-15), is produced by a wide variety of cells and tissues
Alicia Santos Savio et al.
BMC musculoskeletal disorders, 16, 51-51 (2015-04-17)
Pro-inflammatory cytokines are directly implicated in the pathogenesis of Rheumatoid arthritis (RA). Variable clinical response to cytokine targeted therapies as TNFalpha and IL-6, strongly highlights the heterogeneity of inflammatory process in RA. Another cytokine, IL-15 has also been related to
Hamza Loucif et al.
Autophagy, 17(11), 3408-3423 (2021-01-19)
Although macroautophagy/autophagy has been proposed as a critical defense mechanism against HIV-1 by targeting viral components for degradation, its contribution as a catabolic process in providing optimal anti-HIV-1 immunity has never been addressed. The failure to restore proper antiviral CD8A/CD8
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