Key Documents

View All Documentation

IgA from human colostrum

Name: IgA from human colostrum
Brand: SIGMA

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

Synonym(s):

Human IgA

Select a Size

Change View

Size/SKU	Availability	Price

About This Item

UNSPSC Code:

12352203

NACRES:

NA.46

MDL number:

MFCD00164090

Conjugate:

unconjugated

Species reactivity:

Application:

—

Citations:

Pricing and availability is not currently available.

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

conjugate

unconjugated

Quality Segment

200

grade

reagent grade

assay

≥95%

form

essentially salt-free, lyophilized powder

storage temp.

2-8°C

Description

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]

Preparation Note

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.

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item	I5506	I2511	I5256
Sigma-Aldrich I1010 IgA from human colostrum	Sigma-Aldrich I5506 IgG from bovine serum	Sigma-Aldrich I2511 IgG from human serum	Sigma-Aldrich I5256 IgG from goat serum
description reagent grade, ≥95%, essentially salt-free, lyophilized powder	description reagent grade, ≥95% (SDS-PAGE), essentially salt-free, lyophilized powder	description reagent grade, ≥95% (HPLC), buffered aqueous solution	description reagent grade, ≥95% (SDS-PAGE), essentially salt-free, lyophilized powder
conjugate unconjugated	conjugate unconjugated	conjugate unconjugated	conjugate unconjugated
form essentially salt-free, lyophilized powder	form essentially salt-free, lyophilized powder	form buffered aqueous solution	form essentially salt-free, lyophilized powder
storage temp. 2-8°C	storage temp. 2-8°C	storage temp. −20°C	storage temp. 2-8°C
Quality Level 200	Quality Level 300	Quality Level 300	Quality Level 300
grade reagent grade	grade reagent grade	grade reagent grade	grade reagent grade
assay ≥95%	assay ≥95% (SDS-PAGE)	assay ≥95% (HPLC)	assay ≥95% (SDS-PAGE)

Still not finding the right product?

Explore all of our products under IgA from human colostrum

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.