| Tissue Specificity | Isoform 1: Detected in thymocytes. Isoform 2: Detected in thymocytes. Isoform 3: Detected in thymocytes. Isoform 4: Not detected in thymocytes. Isoform 5: Detected in thymocytes. Isoform 6: Not detected in thymocytes. Isoform 7: Detected in thymocytes. Isoform 8: Not detected in thymocytes. |
| Post Translational Modifications | Heavily N- and O-glycosylated. |
| 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. Interacts with CLEC10A at antigen presenting cell-T cell contact.CLEC10A on immature dendritic cells recognizes Tn antigen-carrying PTPRC/CD45 receptor on effector T cells and modulates T cell activation threshold to limit autoreactivity. (Microbial infection) Acts as a receptor for human cytomegalovirus protein UL11 and mediates binding of UL11 to T-cells, leading to reduced induction of tyrosine phosphorylation of multiple signaling proteins upon T-cell receptor stimulation and impaired T-cell proliferation. |
| Protein Name | Receptor-Type Tyrosine-Protein Phosphatase CLeukocyte Common AntigenL-CaT200Cd Antigen Cd45 |
| Database Links | Reactome: R-HSA-202427Reactome: R-HSA-416700Reactome: R-HSA-6798695 |
| Cellular Localisation | Cell MembraneSingle-Pass Type I Membrane ProteinMembrane RaftSynapseColocalized With Dpp4 In Membrane Rafts |
| Alternative Protein Names | Receptor-Type Tyrosine-Protein Phosphatase C proteinLeukocyte Common Antigen proteinL-Ca proteinT200 proteinCd Antigen Cd45 proteinPTPRC proteinCD45 protein |
Information sourced from Uniprot.org
