Product nameAnti-CD22 (phospho Y842) antibody [Y507]
See all CD22 primary antibodies
DescriptionRabbit monoclonal [Y507] to CD22 (phospho Y842)
SpecificityThe antibody detects CD22 phosphorylation on Tyrosine 842 and is predicted to detect splice isoforms 2 based on sequence homology.
Tested applicationsSuitable for: WBmore details
Unsuitable for: Flow Cyt,IHC or IP
Species reactivityReacts with: Human
A synthetic phospho-peptide corresponding to residues surrounding Tyrosine 842 of human CD22.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferpH: 7.20
Preservative: 0.05% Sodium azide
Constituents: 40% Glycerol, 9.85% Tris glycine, 50% Tissue culture supernatant
PurityTissue culture supernatant
Our Abpromise guarantee covers the use of ab32355 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Is unsuitable for FACS, IHC or IP.
Not yet tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
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.
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.
modificationsPhosphorylation 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
- B cell receptor CD22 precursor antibody
- B lymphocyte cell adhesion molecule antibody
- B-cell receptor CD22 antibody
All lanes : Anti-CD22 (phospho Y842) antibody [Y507] (ab32355) at 1/2000 dilution
Lane 1 : Raji Cell Lysate, Untreated
Lane 2 : Raji Cell Lysate, Treated with Pervanadate
Lysates/proteins at 10 µg per lane.
Predicted band size: 95 kDa
Observed band size: 150 kDa why is the actual band size different from the predicted?
ab32355 has not yet been referenced specifically in any publications.