Searching for antibody isotypes

Narrow down your search for isotypes like IgM, IgG2a, or Fab and ScFv fragments

To improve the depth of your antibody search on BenchSci, the Isotype filter can help you refine your search to find products your experiment needs. With this filter, you can find specific classes of antibodies, like: IgA, IgD, IgE, IgG, and IgM, and have the option to further narrow your search for light chain variations kappa and lambda. You can also limit your search to specific immunoglobulin subclasses, for example IgG1-4, or the rat and mouse homologs IgG2A, IgG2B, IgG2C

You can view products consisting of the antigen-binding region of the antibody, known as the Fab fragment, and select for the type of light chain variation of these that you are looking for as well. We’ve also added small recombinant antibodies known as single chain variable fragments, searchable as ScFv under the Isotype filter. Selecting multiple isotypes shows products that satisfy any of the specified isotypes.

Although Isotypes are not yet directly searchable in the smart search bar, it’s straightforward to search in the side filter!

Search for nanobodies

With the Isotype filter, we’ve made it easier for you to identify nanobodies. Search for nanobody within this filter to limit your results to figures and products that match your needs. These products are also sometimes referred to as single domain antibodies by certain vendors, so to be sure that you’re getting a comprehensive view we suggest applying it’s acronym sdab to your search too!

To find nanobodies, apply nanobodies and sdab to your search within the Isotype filter.

Please check out our Guide to Filters for Antibodies to learn more about our filters!