CD22.2 antibody | knockout validation | BD Biosciences 553382

This is a knockout-validated antibody summary, based on the publication "A CD22-Shp1 phosphatase axis controls integrin β 7 display and B cell function in mucosal immunity", as cited below [1]. Labome curates formal publications to compile a list of antibodies with unambiguous specificity within Validated Antibody Database (VAD).

Antibody information

Mouse monoclonal IgG1,κ

Company: BD Biosciences

Antibody: CD22.2

Catalog number: 553382

Summary: Mouse monoclonal antibody against B10.D2 mouse splenocytes. Reacts with mouse by flow cytometry, immunohistochemistry-frozen and immunoprecipitation (reported).

Validation Method

Immunocytochemistry

Sample

WT and Cd22–/– B cells isolated from mouse splenocytes.

Primary incubation

In 1× PB for 60 min at 4°C.

Secondary incubation

Alexa Fluor 647-conjugated streptavidin.

Detection

Images were captured on a Zeiss LSM 880 confocal microscope using the Zeiss Zen software, a 63× oil-immersion objective and 1.5× digital zoom.

Figure: Immunofluorescent staining of cell surface (c) and intracellular (d) β7 and CD22 in B cells with nucleus (DAPI, blue); cytoplasm (MitoTracker™ Deep Red, Red); β7 (green) and CD22 (magenta). Scale bars: 2 μM. Please see Figure 2d in the article [1].

References
  1. Ballet R, Brennan M, Brandl C, Feng N, Berri J, Cheng J, et al. A CD22-Shp1 phosphatase axis controls integrin β7 display and B cell function in mucosal immunity. Nat Immunol. 2021;22:381-390 pubmed publisher