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IL-7 Protein, Human

IL-7 Protein, Human

Catalog Number: UA040193 Reactivity: Human Conjugation: Unconjugated Brand: UA BIOSCIENCE
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Regular price $236.00 USD
Regular price Sale price $236.00 USD
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Product Details

Product Specification


Species Human
Synonyms IL7, IL-7, Interleukin-7
Accession P13232-1
Amino Acid Sequence

Asp26-His177, with C-terminal His Tag

Expression System CHO
Molecular Weight

23-33kDa (Reducing)

Purity >95% by SDS-PAGE&RP-HPLC
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer

1*PBS, pH7.4

Reconstitution

Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.

Stability & Storage

· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.

· 3 months, -20 to -80℃ under sterile conditions after reconstitution.

· 1 week, 2 to 8℃ under sterile conditions after reconstitution.

· Please avoid repeated freeze-thaw cycles.

Reference

1.Tan J, Wang C, Jin Y, Xia Y, Gong B, Zhao Q. Optimal combination of MYCN differential gene and cellular senescence gene predicts adverse outcomes in patients with neuroblastoma. Front Immunol. 2023 Nov 16; 14:1309138. 

2.Padovano C, Bianco SD, Sansico F, De Santis E, Tamiro F, Colucci M, Totti B, Di Iasio S, Bruno G, Panelli P, Miscio G, Mazza T, Giambra V. The Notch1 signaling pathway directly modulates the human RANKL-induced osteoclastogenesis. Sci Rep. 2023 Dec 1;13(1):21199.

Background

IL7, also known as interleukin 7, is a hematopoietic growth factor that belongs to the IL-7/IL-9 family. It is secreted by stromal cells in the bone marrow and thymus. It is also produced by keratinocytes, dendritic cells, hepatocytes, neurons, and epithelial cells, but is not produced by lymphocytes. Human IL‑7 cDNA encodes 177 amino acids (aa) that include a 25 aa signal peptide. Human IL-7 shares approximately 60-63% aa sequence identity with mouse, rat, canine and feline IL-7, and 72-76% with equine, bovine, ovine, and porcine IL-7. IL7 stimulates the proliferation of lymphoid progenitors. It is important for proliferation during certain stages of B-cell maturation. Like other common gamma-chain cytokines like IL-2 and IL-15, IL-7 and its receptor, IL-7R, have been used in a variety of immunotherapy applications, often in fluid tumors and in some instances of solid tumor models.

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Bioactivity

Measured in a cell proliferation assay using Murine 2E8 cells, the EC50 for this effect is less than 1ng/ml

Measured in a cell proliferation assay using Murine 2E8 cells. The EC50 for this effect is less than 0.5ng/ml.

SDS-PAGE

1μg (R: reducing condition, N: non-reducing condition).

SPR

Protein A Chip captured IL-7R alpha/CD127 Fc Chimera Protein, Human (Cat. No. UA010892), can bind IL-7 Protein, Human (Cat. No. UA040193) with an affinity constant of 41.38nM as determined in SPR assay.

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