SRP3087

IL-21 human

recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

• 동의어(들): IL-21 Protein
• UNSPSC 코드: 12352202
• NACRES: NA.32

속성

• 생물학적 소스: human
• 재조합: expressed in E. coli
• 분석: ≥98% (HPLC); ≥98% (SDS-PAGE)
• 형태: lyophilized
• 효능: ≤0.5 ng/mL ED₅₀
• 분자량: 15.4 kDa
• 포장: pkg of 10 μg
• 기술: cell culture | mammalian: suitable
• 불순물: <0.1 EU/μg endotoxin, tested
• 색상: white to off-white
• UniProt 수납 번호: Q9HBE4
• 배송 상태: wet ice
• 저장 온도: −20°C
• 유전자 정보: human ... IL21(59067)

설명

일반 설명

IL21 (interleukin 21) is a member of the γ-chain type I cytokine family, and a four-α-helix bundle pleiotropic cytokine. This gene is localized to human chromosome 4q26–q27. Although, it is predominantly produced by T follicular helper (TFH) and T helper-17 (TH17) cells, it is also produced by CD4⁺ T cells, neutrophils and natural killer cells. Under certain conditions, it is also produced by CD8⁺ T cells. Recombinant human IL-21 is a 15.0 kDa protein consisting of 132 amino acid residues.

생화학적/생리학적 작용

IL21 (interleukin 21) functions on its heterodimeric receptor IL21R, which is expressed widely on immune and non-immune cells. Therefore, IL21 exerts its effects on a wide range of cell types and has a pleiotropic role in immune response regulation. This protein activates Janus kinase (JAK)-signal transducer and activator of transcription (STAT) signaling pathway and functions through mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K)-AKT signaling pathways. Studies show that in rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS), IL21 facilitates migration, invasion and production of MMPs (MMP-2, MMP-3, MMP-9, MMP-13) (matrix metalloproteinases). Therefore, it has potential as a therapeutic target in the treatment of RA. Studies show that CD3⁺TCRvβ11⁺ NK (natural killer) T cells isolated from a local Mycobacterium tuberculosis infection site produce IL21, which in turn assists B cells to produce and release IgG (immunoglobulin) and IgA, to help fight the infection.

서열

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물리적 형태

Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 10 mM sodium phosphate, pH 7.5

재구성

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable