IL-1RA Protein, Human, Recombinant

IL-1RA Protein, Human, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 17.3 kDa and the accession number is P18510-1.

IL-1RA Protein, Human, Recombinant

パッケージサイズ	在庫状況	単価(税別)
100 μg	在庫あり	￥ 53,500

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生物学的情報

1. Measured by its binding ability in a functional ELISA. Immobilized human IL1RA at 10 μg/ml (100 μl/well) can bind human IL1R2-Fc , The EC50 of human IL1R2-Fc is 0.04-0.1 μg/mL. 2. Measured by its binding ability in a functional ELISA. Immobilized human IL1RA at 10 μg/ml (100 μl/well) can bind human IL1R1-Fc , The EC50 of human IL1R1-Fc is 0.08-0.2 μg/mL. 3. Measured by its ability to induce Interferon gamma secretion by human natural killer lymphoma NK-92 cells in the presence of 250pg/mL IL1a. The EC50 for this effect is typically 3-12 ng/mL.

説明

IL-1RA Protein, Human, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 17.3 kDa and the accession number is P18510-1.

Species	Human
Expression Host	E. coli
Tag	Tag Free
Accession Number	P18510-1
別名	DIRA, IL1RA, interleukin 1 receptor antagonist, ICIL-1RA, MVCD4, IRAP, IL-1ra, IL-1RN, IL-1ra3, IL1F3
Construction	mature form of Human IL1RA isoform1 (NP_776214.1) (Arg 26-Glu 177)
Protein Purity	≥ 95 % as determined by SDS-PAGE
分子量	17.3 kDa (predicted)

Endotoxin	Please contact us for more information.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	Interleukin-1 receptor antagonist (IL-1RA) also known as IL1RN 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. A polymorphism of this protein-encoding gene is reported to be associated with an increased risk of osteoporotic fractures and gastric cancer. IL-1RA/IL1RN may inhibit the activity of IL-1 by binding to its receptor and it has no IL-1 like activity. Genetic variation in IL-1RA/IL1RN is associated with susceptibility to microvascular complications of diabetes type 4 (MVCD4). These are pathological conditions that develop in numerous tissues and organs as a consequence of diabetes mellitus. They include diabetic retinopathy, diabetic nephropathy leading to end-stage renal disease, and diabetic neuropathy. Diabetic retinopathy remains the major cause of new-onset blindness among diabetic adults. It is characterized by vascular permeability and increased tissue ischemia and angiogenesis. Defects in IL-1RA/IL1RN are the cause of interleukin 1 receptor antagonist deficiency (DIRA) which is also known as deficiency of interleukin 1 receptor antagonist. Autoinflammatory diseases manifest inflammation without evidence of infection, high-titer autoantibodies, or autoreactive T-cells. DIRA is a rare, autosomal recessive, genetic autoinflammatory disease that results in sterile multifocal osteomyelitis, and pustulosis from birth.

参考文献

1. Langdahl BL,et al. (2000) Osteoporotic fractures are associated with an 86-base pair repeat polymorphism in the interleukin-1--receptor antagonist gene but not with polymorphisms in the interleukin-1beta gene. J Bone Miner. 15 (3): 402-14. 2. El-Omar EM,et al. (2000) Interleukin-1 polymorphisms associated with increased risk of gastric cancer. Nature. 404 (6776): 398-402. 3. Steinkasserer A,et al. (1992) The human IL-1 receptor antagonist gene (IL1RN) maps to chromosome 2q14-q21, in the region of the IL-1 alpha and IL-1 beta loci. Genomics. 13 (3): 654-7.

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IL-1RA Protein, Human, Recombinant

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