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Merck
CN

I1010

IgA from human colostrum

reagent grade, ≥95%, essentially salt-free, lyophilized powder

Synonym(s):

Human IgA

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.46
MDL number:
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Product Name

IgA from human colostrum, reagent grade, ≥95%, essentially salt-free, lyophilized powder

conjugate

unconjugated

grade

reagent grade

assay

≥95%

form

essentially salt-free, lyophilized powder

storage temp.

2-8°C

Quality Level

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Application

Purified IgA may be used as a reference antigen, standard, blocking agent or coating protein in a variety of immunoassays including ELISA, dot immunobinding, immunoblotting, immunodiffusion and immunoelectrophoresis. Other applications include starting materials for the preparation of immunogens and solidphase immunoadsorbents. IgA from human colostrum was used as a standard in ELISA (1 mg/ml) and gel electrophoresis.

Disclaimer

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.

General description

IgA antibody is secretory antibody and is present abundantly in mucous linings of gastrointestinal, respiratory and genitourinary tracts, tears, colostrum and saliva. Thus secretory IgA contributes to the humoral defense mechanism against the pathogens on mucosal surfaces
Human IgA is purified from pooled normal human colostrum by fractionation and ion-exchange fractionation.

Preparation Note

Reconstitute with buffered saline (150 mM sodium chloride).

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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A M Bakker-Zierikzee et al.
Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology, 17(2), 134-140 (2006-04-19)
Secretory immunoglobulin A (SIgA) plays an important role in the defence of the gastrointestinal tract. The level of faecal SIgA antibody is associated with increased neutralization and clearance of viruses. Formula-fed infants who lack the transfer of protective maternal SIgA
Lloyd S Robinson et al.
The Journal of biological chemistry, 294(14), 5230-5245 (2019-02-07)
Gardnerella vaginalis is abundant in bacterial vaginosis (BV), a condition associated with adverse reproductive health. Sialidase activity is a diagnostic feature of BV and is produced by a subset of G. vaginalis strains. Although its genetic basis has not been
Susanna R Bidgood et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(37), 13463-13468 (2014-08-30)
IgA is the most prevalent antibody type on mucosal surfaces and the second most prevalent antibody in circulation, yet its role in immune defense is not fully understood. Here we show that IgA is carried inside cells during virus infection
Erick Sánchez-Salguero et al.
Maternal health, neonatology and perinatology, 5, 9-9 (2019-06-18)
Colostrum is the primary source of maternal immunoglobulin A (IgA) for the newborn. IgA participates in protection and regulation mechanisms of the immune response at the neonate's mucosa. Several studies have evaluated infectious diseases and vaccine protocols effects during pregnancy
Lauri Vehkala et al.
Annals of medicine, 45(8), 501-510 (2013-10-18)
Obesity and type 2 diabetes (T2D) associate with increased oxidative stress. Malondialdehyde acetaldehyde (MAA) adducts have been suggested to be one of the antigenic epitopes in MDA-LDL responsible for the antibody recognition. Our aim was to investigate the associations between

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