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Prospec/IL 1RA Mouse/Interleukin-1 Receptor Antagonist Mouse Recombinant/20µg/CYT-658-20µg-20µg

Prospec/IL 1RA Mouse/Interleukin-1 Receptor Antagonist Mouse Recombinant/20µg/CYT-658-20µg-20µg
  • Prospec/IL 1RA Mouse/Interleukin-1 Receptor Antagonist Mouse Recombinant/20µg/CYT-658-20µg-20µg
商品介绍

Catalogue number

CYT-658

Synonyms

IRAP, IL1F3, IL1RA, IL-1ra3, ICIL-1RA, IL1RN, IL1 inhibitor, IL-1ra, F630041P17Rik.

Introduction

Interleukin-1 ra is a member of the interleukin 1 cytokine family. This protein inhibits the activities of interleukin 1, alpha (IL1A) and interleukin 1, beta (IL1B), and modulates a variety of interleukin 1 related immune and inflammatory responses. This gene and five other closely related cytokine genes form a gene cluster spanning approximately 400 kb on chromosome 2. A polymorphism of this gene is reported to be associated with increased risk of osteoporotic fractures and gastric cancer. Four alternatively spliced transcript variants encoding distinct isoforms have been reported.

Description

IL1 ra Mouse Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 153 amino acids and having a molecular mass of 17.4kDa. The IL1ra is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Physical Appearance

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation

The protein was lyophilized from a concentrated (1mg/ml) solution in water containing NaHCO3.

Solubility

It is recommended to reconstitute the lyophilized Interleukin-1ra in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Stability

Lyophilized Interleukin 1ra although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL-1ra should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.

Purity

Greater than 98.0% as determined by:(a) Analysis by Gel Filtration.(b) Analysis by SDS-PAGE.

Amino acid sequence

The sequence of the first six N-terminal amino acids was determined and was found to be Ala-Cys-Arg-Pro-Ser-Gly.

Biological Activity

The mouse IL-1Ra is capable of inhibiting IL-1-alpha activity in helper T cell line D10.G4.1.

Protein content

Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.91 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of IL-1 ra as a Reference Standard.

Safety Data Sheet

SDS

Usage

ProSpec"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.
品牌介绍

ProSpec是一家全球著名细胞因子蛋白及相关抗体生产和研发品牌。ProSpec的生产和研发工厂位于以色列,专注于蛋白(重组及合成)生产研发,其独有的细菌和哺乳动物表达和蛋白折叠技术使其能在17年内成长为国际一流的科研级蛋白供应商。目前ProSpec可以提供细胞因子,生长因子,激素,信号蛋白,病毒抗原等近800种重组蛋白和100多种抗体,是世界上提供蛋白品种最多的公司之一,领先的生产工艺和规模使其可以提供毫克到克级蛋白,价格优于同类公司。绝大部分产品是天然成熟型蛋白,而不含有标签蛋白。考虑到大部分研究者希望能更灵活地配制蛋白溶液,ProSpec-Tany绝大部分产品没有添加保护剂或盐,这就对工艺提出了更高的要求。同时,ProSpec-Tany绝大部分产品为冻干粉,因此易于运输和保存。

 

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ProSpec是一家全球著名细胞因子蛋白及相关抗体生产和研发品牌。ProSpec的生产和研发工厂位于以色列,专注于蛋白(重组及合成)生产研发,其独有的细菌和哺乳动物表达和蛋白折叠技术使其能在17年内成长为国际一流的科研级蛋白供应商。目前ProSpec可以提供细胞因子,生长因子,激素,信号蛋白,病毒抗原等近800种重组蛋白和100多种抗体,是世界上提供蛋白品种最多的公司之一,领先的生产工艺和规模使其可以提供毫克到克级蛋白,价格优于同类公司。绝大部分产品是天然成熟型蛋白,而不含有标签蛋白。考虑到大部分研究者希望能更灵活地配制蛋白溶液,ProSpec-Tany绝大部分产品没有添加保护剂或盐,这就对工艺提出了更高的要求。同时,ProSpec-Tany绝大部分产品为冻干粉,因此易于运输和保存。

 

prospec代理商授权书蚂蚁淘科技

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