Overview

  • Product nameAnti-CD22 antibody [RFB4] (Phycoerythrin)
    See all CD22 primary antibodies
  • Description
    Mouse monoclonal [RFB4] to CD22 (Phycoerythrin)
  • ConjugationPhycoerythrin. Ex: 488nm, Em: 575nm
  • SpecificityCD22 is in principle a B lineage antigen, that is present in the cytoplasm of progenitor B-cells and on the membrane of the majority of mature peripheral B-lymphocytes. Furthermore, it is strongly expressed on Hairy Cell Leukemia cells and very weakly on some other leukemias. Antigen distribution: Peripheral blood lymphocytes 12±3% T-cells (E+) < 1% B-cells (E-, Ig+) 92±3% Monocytes (CD14+) < 1% Granulocytes < 1% Thymocytes < 1%
  • Tested applicationsSuitable for: IHC-Fr, Flow Cytmore details
    Unsuitable for: IHC-P
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Purified tonsil lymphocytes (Human).

Properties

Applications

Our Abpromise guarantee covers the use of ab23620 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-Fr Use at an assay dependent concentration.
Flow Cyt Use 5µl for 106 cells.

Use maximum of 5µl for 106 cells.





ab91357-Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.
  • Application notesIs unsuitable for IHC-P.
  • Target

    • FunctionMediates B-cell B-cell interactions. May be involved in the localization of B-cells in lymphoid tissues. Binds sialylated glycoproteins; one of which is CD45. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site can be masked by cis interactions with sialic acids on the same cell surface. Upon ligand induced tyrosine phosphorylation in the immune response seems to be involved in regulation of B-cell antigen receptor signaling. Plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.
    • Tissue specificityB-lymphocytes.
    • Sequence similaritiesBelongs to the immunoglobulin superfamily. SIGLEC (sialic acid binding Ig-like lectin) family.
      Contains 6 Ig-like C2-type (immunoglobulin-like) domains.
      Contains 1 Ig-like V-type (immunoglobulin-like) domain.
    • DomainContains 4 copies of a cytoplasmic motif that is referred to as the immunoreceptor tyrosine-based inhibitor motif (ITIM). This motif is involved in modulation of cellular responses. The phosphorylated ITIM motif can bind the SH2 domain of several SH2-containing phosphatases.
    • Post-translational
      modifications
      Phosphorylation of Tyr-762, Tyr-807 and Tyr-822 are involved in binding to SYK, GRB2 and SYK, respectively. Phosphorylation of Tyr-842 is involved in binding to SYK, PLCG2 and PIK3R1/PIK3R2.
      Phosphorylated on tyrosine residues by LYN.
    • Cellular localizationCell membrane.
    • Information by UniProt
    • Database links
    • Alternative names
      • B cell receptor CD22 precursor antibody
      • B lymphocyte cell adhesion molecule antibody
      • B-cell receptor CD22 antibody
      • B-lymphocyte cell adhesion molecule antibody
      • BL CAM antibody
      • BL-CAM antibody
      • BLCAM antibody
      • CD 22 antibody
      • CD22 antibody
      • CD22 antigen antibody
      • CD22 molecule antibody
      • CD22 protein antibody
      • CD22_HUMAN antibody
      • Lectin 2 antibody
      • Leu14 antibody
      • Lyb8 antibody
      • MGC130020 antibody
      • sialic acid binding Ig like lectin 2 antibody
      • Sialic acid binding immunoglobulin like lectin 2 antibody
      • Sialic acid-binding Ig-like lectin 2 antibody
      • SIGLEC 2 antibody
      • Siglec-2 antibody
      • SIGLEC2 antibody
      • T cell surface antigen Leu 14 antibody
      • T-cell surface antigen Leu-14 antibody
      see all

    References for Anti-CD22 antibody [RFB4] (Phycoerythrin) (ab23620)

    This product has been referenced in:
    • Ito D  et al. Exclusion of cytoplasmic fragments in flow cytometric analysis of lymph node samples from dogs with lymphoma using membrane-permeable violet laser-excitable DNA-binding fluorescent dye (DyeCycle Violet). Vet Clin Pathol 39:494-8 (2010). Read more (PubMed: 21198735) »

    See 1 Publication for this product

    Product Wall

    There are currently no Abreviews or Questions for ab23620.
    Please use the links above to contact us or submit feedback about this product.

    Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"