Recombinant Human IL-15 Protein

Name: Recombinant Human IL-15 Protein
Brand: Novus Biologicals
SKU: NBP2-35020

Novus Biologicals, part of Bio-Techne | Catalog # NBP2-35020

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Product Specifications
Scientific Data
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Source

E. coli

Accession #

P40933

Conjugate

Unconjugated

Applications

Bioactivity, SDS-PAGE

View all IL-15 Proteins and Enzymes »

Product Specifications

Description

A single non-glycosylated polypeptide chain containing 114 amino acids corresponding to IL-15 Source: E. coli

Uniprot ID: P40933

Amino Acid Sequence: NWVNVISDLK KIEDLIQSMH IDATLYTESD VHPSCKVTAM KCFLLELQVI SLESGDASIH DTVENLIILA NNSLSSNGNV TESGCKECEE LEEKNIKEFL QSFVHIVQMF INTS

This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Purity

> 97 % pure by SDS-PAGE and HPLC

Endotoxin Level

Less than 1 EU/ug of IL-15 as determined by LAL method.

Predicted Molecular Mass

12.9 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Activity

Measured in a cell proliferation assay using MO7e human megakaryocytic leukemic cells. The ED50 for this effect is 0.300-2.60 ng/mL. The specific activity of recombinant human IL-15 is greater or equal to 1.50 x 10^8 units/mg

Protein / Peptide Type

Recombinant Protein

Scientific Data Images for Recombinant Human IL-15 Protein

SDS-PAGE: Recombinant Human IL-15 Protein [NBP2-35020]

SDS-Page: Human IL-15 Protein [NBP2-35020]

Formulation, Preparation and Storage

NBP2-35020

Formulation	Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.
Preservative	No Preservative
Concentration	Lyoph
Reconstitution	Recommended to centrifuge prior to opening. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/mL. Apportion stock solutions into working aliquots and store at
Format	Carrier-Free
Shipping	The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage	Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.

Background: IL-15

Human Interleukin-15 (IL-15) is expressed by the IL15 gene located on the chromosome 4. It shares approximately 97 % and 73 % sequence identity with simian and murine IL-15, respectively. Both human IL-15 and simian IL-15 are active on murine cells. IL-15 is secreted by mononuclear phagocytes (and some other cells), especially macrophages following infection by virus. It possesses a variety of biological functions, including stimulating and maintaining of cellular immune responses, especially regulating T and natural killer (NK) cell activation and proliferation. In additionally, it shares many biological properties with IL- 2, including T, B and NK cell-stimulatory activities. IL-15 signals through a complex composed of IL-2/IL-15 receptor beta chain. Although IL-15 lacks sequence homology with IL-2, it has recently been shown that both the beta and gamma chains of the IL-2 receptor are utilized for IL-15 binding and signaling. In addition, an IL-15 specific binding protein has also been cloned from a mouse T cell clone.

Long Name

Interleukin 15

Alternate Names

IL15

Gene Symbol