|Application ||WB, IHC, FC|
|Calculated MW||147254 Da|
|Positive Control||Western blot: Jurkat cell lysate, IHC: human tonsil tissue, FACS: Jurkat cells|
|Application & Usage||Western blot: ~1:1000, IHC: ~1:10–1:50, FACS: ~1:10-1:50.|
|Other Names||PTPRC; CD45; Receptor-type tyrosine-protein phosphatase C; Leukocyte common antigen; T200; Flags: Precursor.|
|Formulation||100 µl of antibody in PBS with 0.09% (W/V) sodium azide|
|Handling||The antibody solution should be gently mixed before use.|
|Reconstitution & Storage||-20 °C|
|Precautions||CD-45 Antibody (CT) is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Protein tyrosine-protein phosphatase required for T-cell activation through the antigen receptor. Acts as a positive regulator of T-cell coactivation upon binding to DPP4. The first PTPase domain has enzymatic activity, while the second one seems to affect the substrate specificity of the first one. Upon T-cell activation, recruits and dephosphorylates SKAP1 and FYN. Dephosphorylates LYN, and thereby modulates LYN activity (By similarity).|
|Cellular Location||Membrane; Single-pass type I membrane protein Membrane raft. Note=Colocalized with DPP4 in membrane rafts|
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Provided below are standard protocols that you may find useful for product applications.
CD45 has been identified as a transmembrane glycoprotein, broadly expressed among hematopoietic cells. Multiple isoforms of CD45 are distributed throughout the immune system according to cell type. These isoforms arise because of alternative splicing of exons 4, 5 and 6. The corresponding protein domains are characterized by the binding of monoclonal antibodies specific for CD45RA (exon 4), CD45RB (exon 5), CD45RC (exon 6) and CD45RO (exons 4 to 6 spliced out). The variation in these isoforms is localized to the extracellular domain of CD45, while the intracellular domain is conserved. CD45 functions as a phosphotyrosine phosphatase, a vital component for efficient tyrosine phosphorylation induction by the TCR/CD3 complex. The tyrosine phosphatase activity of CD45 is contained within the conserved intracellular domain. Src and Syk family protein tyrosine kinases are utilized by the TCR/CD3 complex to initiate signaling cascades. Several members of these two families, including Lck, Fyn and ZAP-70, have been implicated as physiological substrates of CD45.
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