IL2 Canine, His

Interleukin-2 Canine Recombinant, His Tag
Cat. No.
BT12111
Source
Escherichia Coli.
Synonyms

Interleukin-2, IL-2, T-cell growth factor, TCGF.

Appearance

Sterile filtered colorless solution.

Purity

Greater than 95.0% as determined by SDS-PAGE.

Usage
THE BioTek's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

IL2 Canine Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 160 amino acids (21-155 a.a) and having a molecular mass of 18.1 kDa.
IL2 Canine is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Product Specs

Introduction
Interleukin 2 (IL2) is a cytokine crucial for the growth and proliferation of T and B lymphocytes. Its receptor is a heterotrimeric protein complex, with the gamma chain shared by IL4 and IL7 receptors. Interestingly, IL2 gene expression in mature thymocytes is monoallelic, a unique regulatory mechanism for precise gene expression control. Studies in mice show that disruption of a similar gene leads to ulcerative colitis-like disease, highlighting IL2's essential role in immune responses to antigens.
Description
Recombinant Canine IL2, expressed in E.Coli, is a non-glycosylated polypeptide chain comprising 160 amino acids (21-155 a.a). With a molecular weight of 18.1 kDa, it features a 25 amino acid His-tag at the N-terminus and is purified using proprietary chromatographic techniques.
Physical Appearance
Colorless, sterile filtered solution.
Formulation
IL2 Canine protein solution is provided at a concentration of 0.5mg/ml in phosphate-buffered saline (pH 7.4).
Stability
For short-term storage (2-4 weeks), store at 4°C. For extended periods, store frozen at -20°C. Avoid repeated freeze-thaw cycles.
Purity
Purity exceeds 95.0% as determined by SDS-PAGE.
Biological Activity
The ED50, determined using a cell proliferation assay with CTLL-2 mouse cytotoxic T cells, is less than 0.3 ng/ml.
Synonyms

Interleukin-2, IL-2, T-cell growth factor, TCGF.

Source
Escherichia Coli.
Amino Acid Sequence

MGSSHHHHHH SSGLVPRGSH MGSHMAPITS SSTKETEQQM EQLLLDLQLL LNGVNNYENP QLSRMLTFKF YTPKKATEFT HLQCLAEELK NLEEVLGLPQ SKNVHLTDTK ELISNMNVTL LKLKGSETSY NCEYDDETAT ITEFLNKWIT FSQSIFSTLT.

Product Science Overview

Structure and Properties

The recombinant canine IL-2 protein consists of amino acids 21-155 of the canine IL-2 sequence and includes an N-terminal His-tag . The amino acid sequence of the recombinant protein is as follows :

MGSSHHHHHH SSGLVPRGSH MGSHMAPITS SSTKETEQQM EQLLLDLQLL LNGVNNYENP QLSRMLTFKF YTPKKATEFT HLQCLAEELK NLEEVLGLPQ SKNVHLTDTK ELISNMNVTL LKLKGSETSY NCEYDDETAT ITEFLNKWIT FSQSIFSTLT

The predicted molecular mass of the recombinant canine IL-2 protein is approximately 18.1 kDa . The protein is highly pure, with a purity greater than 95% as determined by SDS-PAGE . The endotoxin level is less than 1.0 EU per microgram of protein, as determined by the Limulus Amebocyte Lysate (LAL) method .

Biological Activity

Recombinant canine IL-2 has been shown to stimulate cell cytotoxicity in the CTLL-2 mouse cytotoxic T cell line . The effective dose (ED50) range for this activity is less than or equal to 0.3 ng/mL . This demonstrates the protein’s ability to promote immune cell activation and proliferation, which is consistent with the known functions of natural IL-2 .

Applications

Recombinant canine IL-2 is used in various research applications to study the immune response and to develop potential therapeutic strategies for diseases involving the immune system . It may also be of use as an anti-tumor agent in cancer therapy, given its role in promoting the activation and proliferation of immune cells .

Storage and Stability

The recombinant canine IL-2 protein is typically formulated in phosphate-buffered saline (PBS) at pH 7.4 and is provided without preservatives . For short-term storage, the protein should be kept at 4°C, while for long-term storage, it should be aliquoted and stored at -20°C to avoid freeze-thaw cycles .

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