| Product Type | Control antibodies |
| Units | 1000 mg |
| Host | Chicken |
| Application | ELISAWestern Blotting |
SourceIgY was purified from the egg yolks of unimmunized hens.
Productliquid chicken IgY fraction (opaque, light yellow in color).
Product Form: liquid chicken IgY fraction (opaque, light yellow in color)
Formulation: Phosphate buffered saline‚ pH 7.3 with 0.075% sodium azide
Purification Method: Egg yolk-derived purified IgY (non affinity purified)
Concentration: See vial for concentration.
ApplicationsBy SDS gel electrophoresis‚ the IgY purity is between 85 and 90%. Please see embedded image.
StorageThe antibody is shipped at ambient temperature and may be stored at +4°C. For prolonged storage prepare appropriate aliquots and store at -20°C.Repeated thawing and freezing should be avoided. Working dilutions should be stored at +4°C, not refrozen, and preferably used the same day. An aliquot should be thawed slowly at ambient temperature and centrifuged to remove precipitate. This may result in a thin lipid layer floating on top and/or a visible precipitate.Removal of either will not affect the performance or the concentration 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 Nordic-MUbio accepts no liability for any inaccuracies or omissions in this information.
References1. Dickinson, Bonny L., Steven M. Claypool, June A. D'Angelo, Martha L. Aiken, Nanda Venu, Elizabeth H. Yen, Jessica S. Wagner, Jason A. Borawski, Amy T. Pierce, Robert Hershberg, Richard S. Blumberg and Wayne I. Lencer, 2008, Ca2+-dependent Calmodulin Binding to FcRn Affects Immunoglobulin G Transport in the Transcytotic Pathway, MBC Vol. 19(1): 414-423.2. Claypool, Steven M., Bonny L. Dickinson, Jessica S. Wagner, Finn-Eirik Johansen, Nanda Venu, Jason A. Borawski, Wayne I. Lencer and Richard S. Blumberg, 2004, Bidirectional Transepithelial IgG Transport by a Strongly Polarized Basolateral Membrane Fc{gamma}-Receptor, MBC, 15 (4): 1746-1759.3. Huan H. Nguyen, Terrence M. Tumpey, Hae-Jung Park, Young-Ho Byun, Linh D. Tran, Van D. Nguyen, Paul E. Kilgore, Cecil Czerkinsky, Jacqueline M. Katz, Baik Lin Seong, Jae Min Song, Young Bong Kim, Hoa T. Do, Tung Nguyen, and Cam V. Nguyen, 2010; Prophylactic and Therapeutic Efficacy of Avian Antibodies Against Influenza Virus H5N1 and H1N1 in Mice. PLoS One 5(4): e10152. 4. Xiaoliang L. Xu, Thomas C. Leed, Nneka Offor, Christine Cheng, Aihong Liu, Yuqiang Fang, Suresh C. Jhanwar, David H. Abramson and David Cobrinik, 2010, Tumor-Associated Retinal Astrocytes Promote Retinoblastoma Cell Proliferation Through Production of IGFBP-5. American Journal of Pathology. 2010;177:424-435. 5. Sperling LC, Hussey S, Wang JA, Darling T., 2011. Cytokeratin 15 expression in central, centrifugal, cicatricial alopecia: new observations in normal and diseased hair follicles. J Cutan Pathol. 38(5):407-14. 6. Nguyen, H. 2011, Avian Antibodies Specific to Influenza Virus and Technologically Simple Methods of Their Manufacture and Use. US Patent 20,110,166,328. 7. Nandal A, Ruiz JC, Subramanian P, Ghimire-Rijal S, Sinnamon RA, Stemmler TL, Bruick RK, and CC. Philpott, 2011. Activation of the HIF Prolyl Hydroxylase by the Iron Chaperones PCBP1 and PCBP2. Cell Metab. 14:647-57.8. Lei X-H and BR Bochner, 2013. Using Phenotype MicroArrays to Determine Culture Conditions That Induce or Repress Toxin Production by Clostridium difficile and Other Microorganisms. PLoS ONE 8(2): e56545. doi:10.1371/journal.pone.0056545.9. Wijeyesakere S.J., Rizvi S.M. and M. Raghavan. 2013. Glycan-dependent and -independent Interactions Contribute to Cellular Substrate Recruitment by Calreticulin. J Biol Chem 288: 35104-16.10. Alyssa Charrier, Ruju Chen, Sherri Kemper and David R. Brigstock. 2014. Regulation of pancreatic inflammation by connective tissue growth factor (CTGF/CCN2). Immunology 141:564-576. 11. Connolly R, O' Kennedy R. 2017. Magnetic lateral flow immunoassay test strip development – Considerations for proof of concept evaluation. Methods. 116:132-140. 12.Awandare GA, Nyarko PB, Aniweh Y, Ayivor-Djanie R, Stoute JA. Sci Rep. Plasmodium falciparum strains spontaneously switch invasion phenotype in suspension culture. 2018 Apr 10;8(1):5782. doi: 10.1038/s41598-018-24218-0.
Safety Datasheet(s) for this product:NM_Sodium Azide/wp-content/uploads/SDS/Antibody SDS with Sodium Azide Noridic-MUbio.pdf

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制备抗体都需要进行纯化处理
又由于自然存在的抗原大都存在多个抗原表位,会刺激机体产生多种针对同一抗原的不同抗原表位相应的不同抗体.
清冷冻干燥后保存。
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

