CD45 LCA

CD45

135-4C5

20-783-310650 detects a band/s of approximately 180kDa 200kDa 210kDa and 220kDa in B-cell lysates.

Purified IgG prepared by affinity chromatography on Protein G

Required for T-cell activation through the antigen receptor. 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 an dephosphorylates SKAP1 and FYN.

Binds GANAB and PRKCSH (By similarity). Interacts with SKAP1.

The first PTPase domain interacts with SKAP1.

Defects in PTPRC are a cause of severe combined immunodeficiency autosomal recessive T-cell-negative/B-cell-positive/NK-cell-positive (T(-)B(+)NK(+)SCID) [MIM:608971]. SCID refers to a genetically and clinically heterogeneous group of rare congenital disorders characterized by impairment of both humoral and cell-mediated immunity leukopenia and low or absent antibody levels. Patients with SCID present in infancy with recurrent persistent infections by opportunistic organisms. The common characteristic of all types of SCID is absence of T-cell-mediated cellular immunity due to a defect in T-cell development.

Belongs to the protein-tyrosine phosphatase family. Receptor class 1/6 subfamily.

Contains 2 tyrosine-protein phosphatase domains. 1. Alsinet. E. et al. (1990) Differential effects of anti-CD45 monoclonal antibody on human B cell proliferation: a monoclonal antibody recognizing a neuraminidase-sensitive epitope of the T200 molecule enhances anti-immunoglobulin-induced proliferation. 2. del Conde. I. et al. (2005) Tissue-factor-bearing microvesicles arise from lipid rafts and fuse with activated platelets to initiate coagulation.