Description
CD45 is a type I transmembrane glycoprotein that is encoded by the PTPRC gene in humans and is abundantly expressed on nucleated hematopoietic cells.{49671} It contains an extracellular region that binds to glycoproteins and exists in various isoforms in a cell type-, differentiation state-, and activation state-dependent manner.{49671,49676} CD45 also contains two highly conserved cytoplasmic protein tyrosine phosphatase domains that regulate intracellular signaling.{49671} CD45 functions as a negative or positive regulator of antigen receptor signaling in T and B cells through dephosphorylation of Src family kinases in a cell type- and differentiation state-dependent manner.{49676} It also dephosphorylates JAK kinases, inhibiting cytokine and chemokine signaling in leukocytes. Mutations in PTPRC are associated with severe combined immunodeficiency (SCID) in mice and humans.{49672,49673,49674} The number of CD45+ cells is increased in postmortem brain from patients with Alzheimer’s disease.{49675} Increased levels of the CD45 isoform CD45RO have been found on CD19+ lamina propria B cells isolated from patients with Crohn’s disease.{49676} Fluorescently labeled versions of CD45 have commonly been used as a pan leukocyte marker in flow cytometry. Cayman’s CD45 Monoclonal Antibody (Clone BRA-55) can be used for flow cytometry, Western blot, immunocytochemistry, and immunohistochemistry applications. The antibody recognizes CD45 at 170-220 kDa from human samples.
Synonyms: LCA|Leukocyte Common Antigen|Ly-5|PTPRC
Immunogen: Human CD45
Formulation: 100 µg of Protein A-purified IgG1
Isotype:
Applications: FC, ICC, IHC, and WB
Origin: Animal/Mouse
Stability: 365 days
Application|Flow Cytometry||Application|Immunocytochemistry||Application|Immunohistochemistry||Application|Western Blot||Product Type|Antibodies|Monoclonal Antibodies||Research Area|Cancer||Research Area|Immunology & Inflammation|Adaptive Immunity||Research Area|Immunology & Inflammation|Innate Immunity
