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Recombinant Humanized (from mouse) Antibody Fab Fragment is specific to Human CD22, expressed in E. coli
Fab Fragment based on Humanized (from mouse) IgG4 - kappa
Human tonsil lymphocytes
Suitable for use in FC, IP, ELISA, Neut, FuncS, IF and most other immunological methods.
Tested positive against native antigen.
>95.0%, determined by analysis by RP-HPLC & analysis by SDS-PAGE.
Store at 4°C for up to 3 months. For longer term storage aliquot into small volumes and store at -20°C.
CD22 or cluster of differentiation-22, is a molecule belonging to the SIGLEC family of lectins. It is found on the surface of mature B cells and to a lesser extent on some immature B cells. Generally speaking, CD22 is a regulatory molecule that prevents the overactivation of the immune system and the development of autoimmune diseases.CD22 is a sugar binding transmembrane protein, which specifically binds sialic acid with an immunoglobulin (Ig) domain located at its N-terminus. The presence of Ig domains makes CD22 a member of the immunoglobulin superfamily. CD22 functions as an inhibitory receptor for B cell receptor (BCR) signalling.