Catalog / Anti-IgA antibodies
Anti-IgA antibodies
We make 8 antibodies against IgA for 2 species, unconjugated or conjugated to biotin or ALP. This page explains how they differ, so you can pick the one your experiment needs.
Rather use a ready-made kit? See our IgA ELISA kits and IgA ELISpot kits.
What differs between these antibodies
Which species they are for
Available for Human and Mouse. This is the species whose immunoglobulin you want to detect, and it decides which clones there are, so it is the first thing to choose.
Which clone
We make 5 anti-IgA antibody clones. A clone is one specific antibody that binds one site on its target, so it is what you cite or reorder by name. A sandwich assay needs two clones that bind different sites; the capture and detection pairs below are matched for that.
Which conjugate
Unconjugated antibodies carry no label. You coat a plate with them as the capture antibody, or use them where the antibody itself is the reagent. Biotinylated antibodies are detected with a streptavidin conjugate, such as streptavidin-ALP or streptavidin-HRP. ALP-conjugated antibodies carry the enzyme themselves, so no streptavidin step is needed.
Capture and detection pairs
To build your own IgA ELISA or ELISpot, coat with the unconjugated capture antibody and detect with the biotinylated detection antibody, then a streptavidin conjugate. These are the same pairs our own kits use.
| Species | Capture | Detection | For |
|---|---|---|---|
| HumanELISA, ELISpot | MT57 | MT20, biotin | ELISA, ELISpot |
| MouseELISA, ELISpot | MT45A | MT39A, biotin | ELISA, ELISpot |
About IgA
IgA (Immunoglobulin A) represents only 10-15% of the total Ig molecules in serum but is the predominating Ig isotype in secretions and in the gastrointestinal and urogenital tract. The IgA found in secretions (secretory IgA or sIgA) is commonly a dimer with two IgA molecules joined by the J chain. Secretory IgA is the most important Ig isotype in mucous surfaces, the area of entry for most pathogens.
Find the right anti-IgA antibody
Choose what your experiment needs. When your choices match a single antibody, we'll link you to its product page for prices and ordering.
Species
Whose antibodies you detect
Application
What you will use it for
Conjugate
Unlabelled or labelled
Clone
If you already know which
Start by choosing a species.
Related reading
Guides and tutorials covering IgA and how to use these antibodies.
