I8648
Interleukin-15 human
>97% (SDS-PAGE), recombinant, expressed in E. coli, lyophilized powder, suitable for cell culture
Synonym(s):
IL-15
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About This Item
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biological source
human
Quality Level
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.
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 Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Articles
Interleukins, released from leukocytes, include IL-1β playing crucial roles in inflammation, immune responses, and anti-tumor immunity.
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