I2636

Sigma-Aldrich

IgA from human colostrum

reagent grade, buffered aqueous solution

Synonym(s):
Human IgA
MDL number:
NACRES:
NA.46

Quality Level

grade

reagent grade

form

buffered aqueous solution

conjugate

unconjugated

shipped in

dry ice

storage temp.

−20°C

Looking for similar products? Visit Product Comparison Guide

General description

Immunoglobulin A (IgA) is the most abundant antibody isotype produced in humans. IgAs are heterogeneous and exist astwo IgA subtypes. It has the ability to form multimers by interacting with the joining (J) chain. It is present in large quantities in blood. Immunoglobulin A (IgA) antibodies protect mucosal surfaces against invading pathogens.

Application

IgA from human colostrum is a suitable ELISA standard used to estimate the concentrations of IgA in human B cell culture supernatants and in human blood, colostrum and cord blood samples.
IgA from human colostrum has been used to find out percent cross-selectivity values for lactoferrin immunosensors versus several common proteins contained in milk and saliva. It has also been used in western blotting.

Packaging

5 mg in glass bottle

Biochem/physiol Actions

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.

Physical form

Solution in 0.01 M Tris-HCl, 0.1 M sodium chloride, pH 8.0, containing 15 mM sodium azide

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.

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Danielle E Baranova et al.
Pathogens & immunity, 5(1), 89-116 (2021-06-18)
In cholera epidemics, the spread of disease can easily outpace vaccine control measures. The advent of technologies enabling the expression of recombinant proteins, including antibodies, in the milk of transgenic animals raises the prospect of developing a self-administered and cost-effective...
Further development of lactoferrin immunosensor (part III)
Campanella L, et al.
Journal of Pharmaceutical and Biomedical Analysis, 186-193 (2010)
Tithipong Plangsangmas et al.
Animals : an open access journal from MDPI, 10(1) (2020-01-23)
Salivary immunoglobulin A (sIgA) has been proposed as a potential indicator of welfare for various species, including Asian elephants, and may be related to adrenal cortisol responses. This study aimed to distinguish circadian rhythm effects on sIgA in male and...
D Tudor et al.
Mucosal immunology, 2(5), 412-426 (2009-07-10)
AIDS is mainly a sexually transmitted disease, and accordingly, mucosal tissues are the primary sites of natural human immunodeficiency virus type-1 (HIV-1) transmission. Mucosal immunoglobulin A (IgA) antibody specific for HIV-1 envelope gp41 subunit is one correlate of protection in...
Beom Jin Lim et al.
Yonsei medical journal, 52(4), 610-615 (2011-05-31)
Deposition of polymeric IgA1 in the kidney mesangium is the hallmark of IgA nephropathy, but the molecular mechanisms of IgA-mediated mesangial responses and inflammatory injuries remain poorly understood. We hypothesize that Toll-like receptor 4 (TLR4) is involved in IgA-induced mesangial...

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.