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Key Documents

I1010

Sigma-Aldrich

IgA from human colostrum

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

Synonym(s):

Human IgA

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5 MG
€752.00
25 MG
€3,090.00

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5 MG
€752.00
25 MG
€3,090.00

About This Item

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

€752.00


Available to ship onApril 10, 2025Details


Request a Bulk Order

conjugate

unconjugated

Quality Level

grade

reagent grade

Assay

≥95%

form

essentially salt-free, lyophilized powder

storage temp.

2-8°C

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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[1]
Human IgA is purified from pooled normal human colostrum by fractionation and ion-exchange fractionation.

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)[2][3] and gel electrophoresis.[4]

Reconstitution

Reconstitute with buffered saline (150 mM sodium chloride).

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.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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