
Clone | Polyclonal |
Units | 1 ml |
Host | Goat |
BackgroundThe reactivity of the antiserum is directed to the Fc and Fab subunits of the IgG molecule. It includes a certain degree of reactivity with other immunoglobulins via the common Fab portion. It does not react with any non-Ig protein in hamster serum, as tested by immunoelectrophoresis and double radial immunodiffusion. In enzyme-immunocytochemical and immunohistochemical staining for the detection of IgG, antigen or antibody, of appropriately treated cell and tissue substrates at the cellular and subcellular level. In non-isotopic assay methodology (e.g. ELISA) to identify and measure a specific IgG in hamster serum or other body fluid. In electron microscopy, since the complex between the conjugated antibody and the antigen also has electron-dense properties.This immunoconjugate is not pre-diluted. The optimum working dilution of each conjugate should be established by titration before being used. Excess labelled antibody must be avoided because it may cause high unspecific background staining and interfere with the specific signal.
SourcePurified normal IgG isolated from pooled hamster serum. Freund’s complete adjuvant is used in the first step of the immunization procedure.
ProductPeroxidase-coupled purified hyperimmune goat IgG lyophilized from a solution in phosphate buffered saline (PBS, pH 7.2). No preservative added, as it may interfere with the antibody activity. It is reconstituted by adding 1 ml sterile distilled water, spun down to remove insoluble particles, divided into small aliquots, frozen and stored at or below -20°C.
Product Form: HRP
Formulation: Peroxidase-coupled purified hyperimmune goat IgG lyophilized from a solution in phosphate buffered saline (PBS, pH 7.2). No preservative added, as it may interfere with the antibody activity.
SpecificityHorseradish peroxidase-conjugated IgG fraction of polyclonal Goat antiSerum to Hamster IgG, heavy and light chains
Species Reactivity: Inter-species cross-reactivity is a normal feature of antibodies to immunoglobulins, since Ig of different species frequently share antigenic determinants. Cross-reactivity of this antiSerum has not been tested in detail, however in double radial immunodiffusion an reaction has been observed with ferret Serum.
ApplicationsELISA,Immunocytochemistry,Immunohistochemistry (paraffin),Dot blot,Immunoblotting.
StorageThe lyophilized conjugate is shipped at ambient temperature and may be stored at +4°C; prolonged storage at or below -20°C.Prior to use, an aliquot is thawed slowly at ambient temperature, spun down again and used to prepare working dilutions by adding sterile phosphate buffered saline (PBS, pH 7.2). Repeated thawing and freezing should be avoided. Working dilutions should be stored at +4°C, not refrozen, and preferably used the same day. If a slight precipitation occurs upon storage, this should be removed by centrifugation. It will not affect the performance of the immunoconjugate.
CautionThis product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals. It may contain hazardous ingredients. Please refer to the Safety Data Sheets (SDS) for additional information and proper handling procedures. Dispose product remainders according to local regulations.This datasheet is as accurate as reasonably achievable, but Exalpha Biologicals accepts no liability for any inaccuracies or omissions in this information.
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制备抗体都需要进行纯化处理
多抗,稀释度更大,特异性相对较差,容易出现多条带。
兔的单克隆抗体和鼠的单克隆抗体在使用上不会有什么区别。
用来很多抗体,许多时候觉得单抗多抗也未必是理论上那样的。单抗做不好的也有,多抗条带唯一且清晰的也有。
而且很多蛋白的抗体未必有那么多的选择。
1.单克隆抗体的优点:
(1)杂交瘤可以在体外“永久”地存活并传代,只要不发生细胞株的基因突变,就可以不断的生产高特异性、高均一性的抗体.
(2)可以用相对不纯的抗原,获得大量高度特异的、均一的抗体.
(3)由于可能得到“无限量”的均一性抗体,所以适用于以标记抗体为特点的免疫学分析方法,如IRMA和ELISA等.
(4)由于单克隆抗体的高特异性和单一生物学功能,可用于体内的放射免疫显像和免疫导向治疗.
2.单克隆抗体的局限性:
(1)单克隆抗体固定的亲和性和局限的生物活性限制了它的应用范围.由于单克隆抗体不能进行沉淀和凝集反应,所以很多检测方法不能用单克隆抗体完成.
(2)单克隆抗体的反应强度不如多克隆抗体.
(3)制备技术复杂,而且费时费工,所以单克隆抗体的价格也较高.
说得简单点就是,细胞核是原封不动的,没有重组过,而细胞核外的东西是很多别的细胞中提取出来的并组合起来的。这样的混合体淋巴细胞产生的抗体具有很强的嵌合能力,针对性比一般的抗体强,但是它的来源没变,所以称之为混合单克隆抗体

