IL 1RA Rat, His

Interleukin-1 Receptor Antagonist Rat Recombinant, His Tag
Cat. No.
BT1507
Source
Escherichia Coli.
Synonyms
Interleukin-1 receptor antagonist protein, IL-1RN, IL-1ra, IRAP, IL1 inhibitor, Il1rn, Il-1ra, Interleukin-1 Receptor Antagonist, IL-1ra, IL 1RA.
Appearance
Sterile Filtered clear solution.
Purity
Greater than 90.0% as determined by analysis 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

IL 1RA Rat Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 175 amino acids (27-178a.a.) and having a molecular mass of 19.8kDa.
IL 1RA is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Product Specs

Introduction
Interleukin-1 receptor antagonist (IL-1RA) is a protein that regulates inflammatory responses. It is part of the interleukin 1 cytokine family and works by blocking the effects of interleukin 1 alpha (IL1A) and interleukin 1 beta (IL1B). IL-1RA is encoded by a gene located on chromosome 2, among a cluster of six related cytokine genes. Variations in this gene have been linked to conditions like osteoporosis and gastric cancer. IL-1RA has multiple forms (isoforms) due to alternative splicing, a process that produces different mRNA transcripts from a single gene.
Description
Recombinant rat IL-1RA is a lab-produced protein. It's expressed in E. coli bacteria and purified to a single, non-glycosylated polypeptide chain. This protein consists of 175 amino acids (specifically, amino acids 27 to 178 of the original IL-1RA sequence), giving it a molecular weight of 19.8kDa. For easier purification, a 23-amino acid His-tag is added to the protein's N-terminus.
Physical Appearance
Clear solution, sterilized by filtration.
Formulation
The IL-1RA protein is provided in a solution (1 mg/mL) containing: Phosphate Buffered Saline (pH 7.4), 10% glycerol, and 1 mM DTT.
Stability
For short-term storage (up to 4 weeks), keep at 4°C. For longer periods, freeze at -20°C. Adding a carrier protein like HSA or BSA (0.1%) is recommended for long-term storage. Avoid repeatedly freezing and thawing the product.
Purity
Purity is greater than 90%, as determined by SDS-PAGE analysis.
Synonyms
Interleukin-1 receptor antagonist protein, IL-1RN, IL-1ra, IRAP, IL1 inhibitor, Il1rn, Il-1ra, Interleukin-1 Receptor Antagonist, IL-1ra, IL 1RA.
Source
Escherichia Coli.
Amino Acid Sequence

MGSSHHHHHH SSGLVPRGSH MGSHPAGKRP CKMQAFRIWD TNQKTFYLRN NQLIAGYLQG PNTKLEEKID MVPIDFRNVF LGIHGGKLCL SCVKSGDDTK LQLEEVNITD LNKNKEEDKR FTFIRSETGP TTSFESLACP GWFLCTTLEA DHPVSLTNTP KEPCTVTKFY FQEDQ.

Product Science Overview

Introduction

Interleukin-1 Receptor Antagonist (IL-1Ra) is a naturally occurring cytokine that plays a crucial role in regulating immune and inflammatory responses. It is a member of the interleukin 1 cytokine family and functions by inhibiting the activities of interleukin 1, alpha (IL1A), and interleukin 1, beta (IL1B) . The recombinant form of IL-1Ra, particularly the rat version with a His tag, is widely used in research to study its biological functions and potential therapeutic applications.

Structure and Expression

The recombinant rat IL-1Ra protein is typically expressed in HEK 293 cells, a human embryonic kidney cell line, which ensures high levels of protein expression and proper post-translational modifications . The His tag, a sequence of histidine residues, is added to the C-terminus of the protein to facilitate purification and detection. This tag allows for easy isolation of the protein using nickel affinity chromatography, a common technique in protein purification.

Biological Function

IL-1Ra functions as a competitive inhibitor of the interleukin-1 receptor (IL1R1). By binding to IL1R1, it prevents the association of the receptor with its coreceptor IL1RAP, thereby inhibiting the signaling pathways activated by IL1A and IL1B . This inhibition is crucial in modulating immune and inflammatory responses, particularly during the acute phase of infection and inflammation .

Applications in Research

Recombinant rat IL-1Ra is used extensively in research to study its role in various biological processes and diseases. It is employed in assays such as SDS-PAGE and sELISA to investigate its interactions and functions . Additionally, IL-1Ra has been studied for its potential therapeutic applications in conditions characterized by excessive inflammation, such as rheumatoid arthritis and other autoimmune diseases .

Clinical Relevance

The IL1RN gene, which encodes IL-1Ra, has been associated with several diseases. Polymorphisms in this gene are linked to an increased risk of osteoporotic fractures and gastric cancer . Understanding the function and regulation of IL-1Ra can provide insights into the development of new therapeutic strategies for these conditions.

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