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Merck

I5131

Sigma-Aldrich

IgG 来源于绵羊血清

reagent grade, ≥95% (SDS-PAGE), essentially salt-free, lyophilized powder

别名:

羊IgG

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About This Item

MDL號碼:
分類程式碼代碼:
12352203
NACRES:
NA.46

生物源

sheep

共軛

unconjugated

抗體表格

purified immunoglobulin

等級

reagent grade

化驗

≥95% (SDS-PAGE)

形狀

essentially salt-free, lyophilized powder

同型

IgG

溶解度

saline: 1 mg/mL at -20 °C (Repeated freezing and thawing is not recommended.)

儲存溫度

2-8°C

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一般說明

IgG 有 4 种同种型 IgG1、IgG2、IgG3 和 IgG4。它包含 4 个多肽链,由 2 条相同的 50 kDa γ 重(H)链和 2 条相同的 25 kDa κ或 λ 轻(L)链组成,它们通过链间二硫键连接。

應用

纯化的 IgG 可用作各种免疫测定中的参考抗原、标准品、封闭剂或包被蛋白,包括 ELISA、斑点免疫结合、蛋白免疫印迹、免疫扩散、免疫沉淀和免疫电泳等。其他应用包括作为制备免疫原和固相免疫吸附剂的起始材料。

生化/生理作用

IgG 介导经胎盘转运并参与二次免疫反应。IgG 激活补体系统的经典途径。它中和病毒颗粒和毒素。IgG 在抗体依赖性细胞介导的细胞毒性(ADCC)和吞噬作用中起关键作用。它可能与过敏有关。它具有最长的血清半衰期。
IgG抗体亚型是免疫系统中最丰富的血清免疫球蛋白。它由B细胞分泌,存在于血液和细胞外液中,可防止细菌、真菌和病毒引起的感染。母体IgG可通过胎盘转移至胎儿,胎盘对新生儿免疫防御感染至关重要。

分析報告

蛋白质浓度应在重组后通过 280 nm 处的吸光度(E1%/280 = 14)测定。

免責聲明

除非我们的产品目录或产品附带的其他公司文档另有说明,否则我们的产品仅供研究使用,不得用于任何其他目的,包括但不限于未经授权的商业用途、体外诊断用途、离体或体内治疗用途或任何类型的消费或应用于人类或动物。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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