This product is a whole antiserum. The antibody concentration varies from lot to lot and ranges from 3.0 - 5.0 mg/mL. This information is reported in the product Certificate of Analysis. Please see the link below to review a sample or lot specific Certificate:
https://www.sigmaaldrich.com/product/sigma/i1261#product-docuemntation
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生物源
goat
共軛
unconjugated
抗體表格
whole antiserum
抗體產品種類
secondary antibodies
無性繁殖
polyclonal
包含
15 mM sodium azide
技術
indirect ELISA: 1:50,000
quantitative precipitin assay: 3.0-5.0
運輸包裝
dry ice
儲存溫度
−20°C
目標翻譯後修改
unmodified
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一般說明
Immunoglobulin A (IgA) is found as two subclasses, that is, IgA1 and IgA2. IgA exists as a monomer or dimer in the secreted form. Dimeric IgA has a molecular weight of 390 kDa.
特異性
The antibody preparation is specific for human IgA when tested against purified human IgA, IgG, IgM, Bence Jones Kappa, and Bence Jones Lambda myeloma proteins
應用
Anti-Human IgA (α-chain specific) antibody produced in goat has been used to determine the concentration of total IgA in serum samples by single radial immunodiffusion and enzyme-linked immunosorbent assay (ELISA).
生化／生理作用
IgA antibody is secretory antibody and is present abundantly in mucous linings of gastrointestinal, respiratory and genitourinary tracts, tears and saliva. Thus secretory IgA contributes to the humoral defense mechanism against the pathogens on mucosal surfaces.
In addition to passive immunity, IgA also induces active immunity by regulating the production of various chemokines and vital cytokines such as tumor necrosis factor (TNF) and interleukin (IL)-1β.
外觀
Goat Anti-Human IgA is supplied as a liquid containing 0.1% sodium azide as preservative.
儲存和穩定性
For continuous use, store at 2-8 °C for a maximum of one month. For extended storage, the solution may be frozen in working aliquots. Repeated freezing and thawing is not recommended. Storage in "frost-free" freezers is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use.
免責聲明
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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儲存類別代碼
10 - Combustible liquids
水污染物質分類（WGK）
nwg
閃點（°F）
Not applicable
閃點（°C）
Not applicable
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分析證明 (COA)
Lot/Batch Number
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Good morning, would you please provide me with an info about the precise concentration of substance I1261? Thank you in advane provide
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