title: Epitope mapping of lymphocyte phosphatase-associated phosphoprotein.
abstract: Lymphocyte phosphatase-associated phosphoprotein (LPAP) is a transmembrane protein with unknown function. The available data on its close association with phosphatase CD45 and its phosphorylation depending on cell activation suggest that LPAP can play a significant role in the antigenic stimulation of lymphocytes. We have localized three antigenic epitopes of the LPAP molecule that can be detected using monoclonal antibodies prepared earlier. Experiments on reactions of antibodies with point mutants and shortened forms of the LPAP protein revealed regions of the amino acid sequence that correspond to the epitopes recognized by the antibodies.
authors.affiliation: Institute of Immunology, Federal Medical-Biological Agency, Moscow, 115478, Russia. avfilat@rambler.ru.
authors.forename: A V
authors.initials: AV
authors.lastname: Filatov
authors.forename: T D
authors.initials: TD
authors.lastname: Meshkova
authors.forename: D V
authors.initials: DV
authors.lastname: Mazurov
mesh_terms: D000911:Antibodies, Monoclonal / Q000276:immunology; D018604:Epitope Mapping; D005110:Extracellular Space / Q000201:enzymology; D057809:HEK293 Cells; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins / Q000737:chemistry / Q000235:genetics / Q000276:immunology*; D008565:Membrane Proteins / Q000737:chemistry / Q000235:genetics / Q000276:immunology*; D009154:Mutation
chemical_list: D000911:Antibodies, Monoclonal; D047908:Intracellular Signaling Peptides and Proteins; D008565:Membrane Proteins; C090519:PTPRCAP protein, human