AAA59497.1
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UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
130,898 Da
NCBI Official Full Name
leukocyte common antigen, partial
NCBI Official Synonym Full Names
protein tyrosine phosphatase, receptor type, C
NCBI Official Synonym Symbols
LCA; LY5; B220; CD45; L-CA; T200; CD45R; GP180 [Similar Products]
NCBI Protein Information
receptor-type tyrosine-protein phosphatase C; CD45 antigen; T200 glycoprotein; T200 leukocyte common antigen; protein tyrosine phosphatase, receptor type, c polypeptide
UniProt Protein Name
Receptor-type tyrosine-protein phosphatase C
UniProt Synonym Protein Names
Leukocyte common antigen; L-CA; T200; CD_antigen: CD45
UniProt Synonym Gene Names
UniProt Entry Name
PTPRC_HUMAN
NCBI Summary for LCA
The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitosis, and oncogenic transformation. This PTP contains an extracellular domain, a single transmembrane segment and two tandem intracytoplasmic catalytic domains, and thus is classified as a receptor type PTP. This PTP has been shown to be an essential regulator of T- and B-cell antigen receptor signaling. It functions through either direct interaction with components of the antigen receptor complexes, or by activating various Src family kinases required for the antigen receptor signaling. This PTP also suppresses JAK kinases, and thus functions as a regulator of cytokine receptor signaling. Alternatively spliced transcripts variants of this gene, which encode distinct isoforms, have been reported. [provided by RefSeq, Jun 2012]
UniProt Comments for LCA
CD45: a receptor type protein tyrosine phosphatase protein. Contains an extracellular domain, a single transmembrane segment and two tandem intracytoplasmic catalytic domains. The first PTPAse domain has enzymatic activity, while the second one seems to affect the substrate specificity of the first one. Specifically expressed in hematopoietic cells. An essential regulator of T- and B-cell antigen receptor signaling. Functions through either direct interaction with components of the antigen receptor complexes, or by activating various Src family kinases required for the antigen receptor signaling. Suppresses JAK kinases, and thus functions as a regulator of cytokine receptor signaling. Four alternatively spliced isoforms have been described.
Protein type: Motility/polarity/chemotaxis; EC 3.1.3.48; Membrane protein, integral; Receptor protein phosphatase, tyrosine
Chromosomal Location of Human Ortholog: 1q31-q32
Cellular Component: focal adhesion; membrane; integral to plasma membrane; plasma membrane; external side of plasma membrane; lipid raft
Molecular Function: protein binding; transmembrane receptor protein tyrosine phosphatase activity; protein tyrosine phosphatase activity; protein kinase binding
Biological Process: B cell proliferation; axon guidance; substrate-bound cell migration, cell release from substrate; regulation of cell cycle; protein amino acid dephosphorylation; T cell receptor signaling pathway; positive regulation of antigen receptor-mediated signaling pathway; bone marrow development; stem cell development; B cell receptor signaling pathway; cell surface receptor linked signal transduction; dephosphorylation; release of sequestered calcium ion into cytosol; positive regulation of protein kinase activity; negative regulation of T cell mediated cytotoxicity; positive regulation of B cell proliferation; negative regulation of protein kinase activity; hemopoietic progenitor cell differentiation; negative regulation of cytokine and chemokine mediated signaling pathway; positive regulation of T cell proliferation; immunoglobulin biosynthetic process; defense response to virus; T cell differentiation
Disease: Hepatitis C Virus, Susceptibility To; Severe Combined Immunodeficiency, Autosomal Recessive, T Cell-negative, B Cell-positive, Nk Cell-positive
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