Anti-IgA Secretory Component抗体[SC-05] (ab3924)
Key features and details
- Mouse monoclonal [SC-05] to IgA Secretory Component
- Suitable for: WB
- Reacts with: Human
- Isotype: IgG1
概述
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产品名称
Anti-IgA Secretory Component抗体[SC-05]
参阅全部 IgA Secretory Component 一抗 -
描述
小鼠单克隆抗体[SC-05] to IgA Secretory Component -
宿主
Mouse -
特异性
ab3924 reacts with 80 kDa human secretory component glycoprotein (both free and bound in secretory IgA). The recognized glycoprotein is a specific membrane marker of glandular carcinomas. -
经测试应用
适用于: WBmore details -
种属反应性
与反应: Human -
免疫原
Full length native protein (purified) corresponding to Human IgA Secretory Component. Affinity-purified secretory component from human colostrum.
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阳性对照
- WB: MCF7 and MDA-MB-361 cell lysates.
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常规说明
Examples of positive human tissues: secretory mucosa of gastrointestinal and respiratory tract, epithelia of salivary glands, endometrium, endocervix, kidney, prostate, mammary gland.
The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.
If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, along with publications, customer reviews and Q&As
性能
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形式
Liquid -
存放说明
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle. -
存储溶液
pH: 7.40
Preservative: 0.097% Sodium azide
Constituent: PBS -
Concentration information loading...
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纯度
Protein A purified -
纯化说明
Purified from hybridoma culture supernatant. Purity >95% by SDS-PAGE. -
Primary antibody说明
Examples of positive human tissues: secretory mucosa of gastrointestinal and respiratory tract, epithelia of salivary glands, endometrium, endocervix, kidney, prostate, mammary gland. -
克隆
单克隆 -
克隆编号
SC-05 -
同种型
IgG1 -
研究领域
相关产品
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Compatible Secondaries
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Isotype control
应用
应用 | Ab评论 | 说明 |
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WB |
Use a concentration of 1 - 2 µg/ml. Detects a band of approximately 68 kDa (predicted molecular weight: 61 kDa).
See Abreview. Use under non-reducing conditions. |
说明 |
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WB
Use a concentration of 1 - 2 µg/ml. Detects a band of approximately 68 kDa (predicted molecular weight: 61 kDa). See Abreview. Use under non-reducing conditions. |
靶标
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相关性
IgA has two subclasses (IgA1 and IgA2) and can be produced as a monomeric as well as a dimeric form. The IgA dimeric form is the most prevalent and is also called secretory IgA (sIgA). The secretory component of sIgA protects the immunoglobulin from being degraded by proteolytic enzymes, thus sIgA can survive in the harsh gastrointestinal tract environment and provide protection against microbes that multiply in body secretions. sIgA can also inhibit inflammatory effects of other immunoglobulins. Secretory component is a proteolytic cleavage product of the polymeric immunoglobulin receptor which remains associated with dimeric IgA in sero-mucus secretions. Polymeric IgA binds to the polymeric immunoglobulin receptor on the basolateral surface of epithelial cells and is taken up into the cell via transcytosis. The receptor-IgA complex passes through the cellular compartments before being secreted on the luminal surface of the epithelial cells, still attached to the receptor. Proteolysis of the receptor occurs and the dimeric IgA molecule, along with the secretory component, are free to diffuse throughout the lumen. Secretory components wrap around two IgA units joined by a J chain protein fragment, resulting in a >--< configuration, with each of the two antigen binding regions of the two constituent y-shaped antibodies exposed. One identified function of secretory components is to protect IgA antibodies from degradation by the gastric acids and enzymes of the digestive system. This property is especially important in the transfer of immune system components during breastfeeding.
图片
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All lanes : Anti-IgA Secretory Component antibody [SC-05] (ab3924) at 1 µg/ml
Lane 1 : MCF7 (Human breast adenocarcinoma cell line) Whole Cell Lysate
Lane 2 : MDA-MB-361 (Human breast adenocarcinoma cell line) Whole Cell Lysate Whole Cell Lysate
Lysates/proteins at 10 µg per lane.
Secondary
All lanes : Goat Anti-Mouse IgG H&L (HRP) preadsorbed (ab97040) at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 61 kDa
Observed band size: 68 kDa why is the actual band size different from the predicted?
Additional bands at: 38 kDa. We are unsure as to the identity of these extra bands.
Exposure time: 20 minutes
Secretory Component Glycoprotein contains a number of potential glycosylation sites (SwissProt) which may explain its migration at a higher molecular weight than predicted.
数据表及文件
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SDS download
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Datasheet download
文献 (5)
ab3924 被引用在 5 文献中.
- Biswas S et al. IgA transcytosis and antigen recognition govern ovarian cancer immunity. Nature N/A:N/A (2021). PubMed: 33536615
- Agarwal S et al. Human Fc Receptor-like 3 Inhibits Regulatory T Cell Function and Binds Secretory IgA. Cell Rep 30:1292-1299.e3 (2020). PubMed: 32023449
- Polosukhin VV et al. Bronchial secretory immunoglobulin a deficiency correlates with airway inflammation and progression of chronic obstructive pulmonary disease. Am J Respir Crit Care Med 184:317-27 (2011). IHC-P ; Human . PubMed: 21512171
- Bártek J et al. Secretory component in differentiating normal epithelium, benign lesions and malignancy in the human breast as monitored by monoclonal antibodies. Histochemistry 91:235-44 (1989). PubMed: 2722565
- Kvale D et al. Rapid selection of cultured cells with increased expression of a membrane marker (secretory component). Int J Cancer 42:638-41 (1988). PubMed: 2459074