产品说明
一般描述
Immunoglobulin A (IgA) belongs to the immunoglobulin family. It is found as two subclasses, that is, IgA1 and IgA2. IgA1 has an extended hinge because of the insertion of a duplicated stretch of amino acids, whereas IgA2 lacks this. IgA exists as a monomer or dimer in the secreted form. Dimeric IgA has a molecular weight of 390kDa. This antibody can form multimers and its polymerization is essential for transport across epithelia. IgA is crucial as the first line of defence. Limited digestion using papain cleaves the antibody into three fragments, two of which are identical and contain the antigen-binding activity. They are known as Fragment antigen binding (Fab) fragments. The third fragment does not possess antigen-binding activity and is known as fragment crystallizable (Fc). It interacts with cells and effector molecules. The heavy and light chains are folded into globular domains. VH, Cα1, Cα2 and Cα3 are the four domains in each heavy chain and VL and CL are the two domains in each light chain. IgA is found in mucus, tears and milk.
特异性
This product was prepared from monospecific antiserum by immunoaffinity chromatography using Ferret IgA coupled to agarose beads followed by solid phase adsorption(s) to remove any unwanted reactivities. Assay by immunoelectrophoresis resulted in a single precipitin arc against Anti-Goat Serum, Ferret IgA and Ferret Serum. No reaction was observed against Ferret IgG or Ferret IgM. Specificity was confirmed by ELISA at less than 1% cross reactivity against other Ferret heavy or light chain isotypes.
免疫原
Ferret IgA alpha heavy chain
物理属性
Antibody format: IgG
外形
Supplied in 0.1 M Sodium Borate, 0.075 M Sodium Chloride, 0.005 M EDTA, pH 8.0
免责声明
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.
基本信息
NACRES | NA.46 |
产品性质
质量水平 | 100 |
生物来源 | goat |
偶联物 | unconjugated |
抗体形式 | affinity isolated antibody |
antibody product type | secondary antibodies |
克隆 | polyclonal |
形式 | buffered aqueous solution |
species reactivity | ferret |
浓度 | 1.0 mg/mL |
technique(s) | immunohistochemistry: suitable indirect ELISA: suitable western blot: suitable |
运输 | wet ice |
储存温度 | 2-8℃ |
安全信息
储存分类代码 | 12 - Non Combustible Liquids |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
Sigma-Aldrich