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Safety Information

A9669

Sigma-Aldrich

Anti-Human IgA (α-chain specific)−Alkaline Phosphatase antibody produced in goat

affinity isolated antibody, buffered aqueous solution

Synonym(s):

Goat Anti-Human IgA (α-chain specific)−AP

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About This Item

MDL number:
MFCD00162413
UNSPSC Code:
12352203
NACRES:
NA.46

biological source

goat

conjugate

alkaline phosphatase conjugate

antibody form

affinity isolated antibody

antibody product type

secondary antibodies

clone

polyclonal

form

buffered aqueous solution

technique(s)

direct ELISA: 1:35,000
dot blot: 1:30,000
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100

shipped in

wet ice

storage temp.

2-8°C

target post-translational modification

unmodified

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General description

Immunoglobulin A (IgA) is the most abundant antibody isotype produced in humans. IgAs are heterogeneous and exist as two IgA subtypes. It has the ability to form multimers by interacting with the joining (J) chain.It is present in large quantities in blood. IgA antibodies protect mucosal surfaces against invading pathogens.
Specificity of the Alkaline Phosphatase Conjugated Anti-Human IgA is determined by Enzyme Linked Immunosorbent Assay (ELISA). Identity and purity of the antibody is established by immunoelectrophoresis (IEP) prior to conjugation. Electrophoresis of the antibody preparation followed by diffusion versus anti-goat IgG and anti-goat whole serum results in single arcs of precipitation.

Specificity

The conjugate is specific for human IgG. No cross-reaction with Mouse and Rat IgG.

Immunogen

Purified human IgA

Application

Anti-Human IgA (α-chain specific) Alkaline Phosphatase antibody produced in goat has been used in quantitative sandwich enzyme-linked immunosorbent assay (ELISA) and immunoassays.
Human milk samples were analyzed for the presence of IgA antibodies specific to certain antigens of H. pylori by western blot using alkaline-phosphate-conjugated goat anti-human IgA antibody.
Milk samples from 10 mothers were probed for bound milk IgA by western blot using alkaline-phosphatase goat anti-human IgA antibody.Elisa Assays were performed using alkaline phosphatase conjugated gaot anti-human IgA chain specific antibody (1:1000) to detect IgA immunoglobulins in serum and seminal plasma samples from infertile men.
The product may also be used for dot blot (1:30,000) and immunohistochemistry (at 1:100 dilutions, using formalin-fixed, paraffin-embedded sections).

Biochem/physiol Actions

IgA is a secretory glycoprotein antibody that regulates the physiological balance between commensal intestinal bacteria and the defenses of the host immune system. It is the highest generated antibody isotype. IgAs are mainly secreted in the intestinal mucosa and prevent the commensal microorganisms from invading the intestines
Immunoglobulin A (IgA) antibody is a secretory antibody present abundantly in mucous linings of gastrointestinal, respiratory and genitourinary tracts, tears and saliva. Thus, secretory IgA contributes to the humoral defense mechanism against the pathogens on mucosal surfaces.

Physical form

Solution in 0.05 M Tris, pH 8.0, containing 1% bovine serum albumin, 1 mM MgCl2 and 15 mM sodium azide

Storage and Stability

Store at 0-5°C. Do Not Freeze.

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.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

A9669-.5ML:
A9669-.25ML:
A9669-BULK:
A9669-VAR:
A9669-1ML:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Luka Mesin et al.
Journal of immunology (Baltimore, Md. : 1950), 187(6), 2867-2874 (2011-08-16)
To understand the biology of Ab-secreting cells in the human small intestine, we examined Ab production of intestinal biopsies kept in culture. We found sustained IgA and IgM secretion as well as viable IgA- or IgM-secreting cells after >4 wk
L R Stanberry et al.
Vaccine, 30(2), 307-316 (2011-11-15)
Improving the systemic and mucosal immune response following intranasal vaccination could enhance disease protection against respiratory pathogens. We assessed the safety and immunogenicity of a novel nanoemulsion mucosal adjuvant W(80)5EC combined with approved seasonal influenza antigens. This was a first-in-human
N Ronda et al.
Clinical and experimental immunology, 95(1), 49-55 (1994-01-01)
ANCA are associated with certain forms of systemic vasculitis, and have been reported previously to be of the IgG and IgM isotype. We examined the possible association between IgA ANCA and the IgA-related diseases Henoch-Schönlein purpura (HSP) and IgA nephropathy
Mucosal immunity and vaccines
Holmgren J and Czerkinsky C
Nature Medicine, 11(4s), S45-S45 (2005)
Mikael Sonesson et al.
European journal of oral sciences, 119(1), 15-20 (2011-01-20)
According to previous studies, minor glands produce about 35% of the total salivary immunoglobulin A (salivary IgA). The age-dependent increase in whole-saliva salivary IgA concentrations has been studied extensively, but we found no published reports comparing the minor-gland saliva concentrations
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