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IL-2R beta/CD122 His Tag Protein, Human

IL-2R beta/CD122 His Tag Protein, Human

Catalog Number: UA010372 Brand: UA BIOSCIENCE
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Regular price $514 USD
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Product Details

Product Specification


Species Human
Antigen IL-2R beta/CD122
Synonyms IL-2R beta, CD122, IL2RB, RP5-1170K4.6, P70-75
Accession P14784
Amino Acid Sequence

Ala27-Asp239, with C-terminal 8*His AVNGTSQFTCFYNSRANISCVWSQDGALQDTSCQVHAWPDRRRWNQTCELLPVSQASWACNLILGAPDSQKLTTVDIVTLRVLCREGVRWRVMAIQDFKPFENLRLMAPISLQVVHVETHRCNISWEISQASHYFERHLEFEARTLSPGHTWEEAPLLTLKQKQEWICLETLTPDTQYEFQVRVKPLQGEFTTWSPWSQPLAFRTKPAALGKDGGGSHHHHHHHH

Expression System HEK293
Molecular Weight 36-42kDa
Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized powder
Storage Buffer 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、Foss F. (2006) Clinical experience with denileukin diftitox (ONTAK). Semin Oncol. 33(1 Suppl 3): 11-6.

2、Sprent J. et al. (2001) T cell death and memory. Science. 293(5528): 245-248.

Background

Interleukin-2 receptor (IL-2R), as the specific receptor of interleukin-2(IL-2), perform their biological functions by binding with IL-2 to transmit signals into cells insides, which induced the downstream signal expression and participated in immune response. The longest IL-2R beta (IL-2Rβ) in the intracellular region has many binding sites for protein phosphorylation. Therefore, IL-2Rβ plays an indispensable role in signal transduction due to its sequence and structural characteristics. IL-2R mediates the multipotency of IL-2 on AC lymphocytes including T cells, B cells and NK cells. The combination of IL-2 and IL-2R complex can cause intracellular signal events and ultimately lead to cell proliferation. In addition, dysregulated expression of the IL-2Rβ abrogates development of NK cells. What’s more important is that T cell proliferation and development of IFNc-producing effector CD8+ T cells depend upon IL-2Rβ.

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Bioactivity

Measured by its ability to inhibit the IL-15, Human dependent proliferation of MO7e human megakaryocytic leukemic cells. The EC50 for this effect is less than 2 µg/ml in the presence of 5ng/ml of recombinant human IL-15, Human.
Anti-His antibody Immobilized on CM5 Chip captured IL-2R beta/CD122 His Tag, Human (Cat. No. UA010372), can bind IL-15, Human (Cat. No. UA040010) with an affinity constant of 19.04 nM as determined in SPR assay.
Anti-His antibody Immobilized on CM5 Chip captured IL-2R beta/CD122 His Tag, Human (Cat. No. UA010372), can bind IL-2, Human (Cat. No. UA040108) with an affinity constant of 0.32 μM as determined in SPR assay.

SDS-PAGE

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

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