| Product Type | Proteins & Peptides |
| Units | 100 mg |
Background Purified rabbit albumin may be used as a reference antigen, calibrator, coating protein and blocking agent in a variety of immunoassays including immunodiffusion, immunoelectrophoresis, ELISA, Western blotting, dot-immunobinding assays (DIBA), haemagglutination, and cellbinding assays.
ProductLyophilized, stable white powder. No preservative added. After opening the vial, the lyophilized content is reconstituted by adding 1 ml of sterile distilled water, mixed gently by inversion until complete dissolution is obtained.
Formulation: Lyophilized, stable white powder. No preservative added.
SpecificityChromatographically purified Rabbit albumin.
Applications
StorageThis product is shipped lyophilized at ambient temperature. After arrival store at +4°C. Prolonged storage may be at -20°C.Allow to stand at ambient temperature for 5-10 minutes to reach equilibrium. Reconstituted solution may be stored frozen. Working dilutions may be prepared by adding the required amount of phosphate buffered saline (PBS), should not be refrozen and preferably used within 24 hours. Repeated thawing and freezing should be avoided. If a slight precipitation occurs upon storage, this should be removed by centrifugation and will not affect the performance of the product.
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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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。
抗原有两个基本特性，即抗原性和免疫原性。有抗原性的物质不一定有免疫原性，所以由此引出半抗原和完全全抗原，半抗原必须经过经过一定的改造（偶联蛋白载体BSA，OVA或者HSA等大分子物质）方能成为完全。一般而言完全抗原分子量越大（大于10KDa），结构越复杂引起免疫反应的能力也就越强。
抗体就是能与特异性抗原结合的免疫球蛋白，抗体一般分为多克隆抗体和单克隆抗体，多克隆抗体能与抗原的多个表位结合。本篇主要讲述兔来源的多克隆抗体的生产步骤
多抗一般制备流程：完全抗原的准备→兔子的免疫→ 效价检测和终放→抗体亲和纯化→抗体的浓缩和保存。
一般来说多克隆的阳性率高一些，但出现假阳性的比例也高一些。
抗体的特异性鉴定 抗体的特异性是指与相应抗原或近似抗原物质的识别能力。抗体的特异性高，它的识别能力就强。衡量特异性通常以交叉反应率来表示。交叉反应率可用竞争抑制试验测定。以不同浓度抗原和近似抗原分别做竞争抑制曲线，计算各自的结合率，求出各自在 IC50时的浓度，并按下列公式计算交叉反应率。 如果所用抗原浓度IC50浓度为pg/管，而一些近似抗原物质的IC50浓度几乎是无穷大时，表示 这一抗血清与其他抗原物质的交叉反应率近似为 0，即该血清的特异性较好。
抗体的亲和力 是指抗体和抗原结合的牢固程度。亲和力的高低是由抗原分子的大小、抗体分子的结合位点与抗原决定簇之间立体构型的合适度决定的。有助于维持抗原抗体复合物稳定的分子间力有氢键、疏水键、侧链相反电荷基因的库仑力、范德华力和空间斥力。亲和力常以亲和常数K表示，K的单位是L/mol，通常K的范围在 108 ～1010 /mol，也有多达 1014 /mol。抗体亲和力的测定对抗体的筛选，确定抗体的用途，验证抗体的均一性等均有重要意义。向左转|向右转
