title: [Light chain typing of paraproteins and Bence-Jones proteins by immunoelectrophoresis].
abstract: Light chain types of paraproteins G (76), A (28) and D (5), monoclonal macroglobulins (14) and Bence-Jones proteins (11) were determined by immunoelectrophoretic analysis using monospecific antisera to surface (accessible) and nonaccessible determinants of light chains. The types of the G and A paraproteins were determined in the whole sera; D paraproteins and monoclonal macroglobulins were purified before typing. No precipitation occurred with antisera to light chains in 6 out of 28 A paraproteins. In these cases the inhibition of the IgG precipitation with either the anti-kappa or anti-lambda sera allowed to determine the paraprotein type. The kappa:lambda ratio was established for paraproteins of various classes: 1.7 for paraproteins G, 1.0 for paraproteins A, 2.5 for monoclonal macroglobulins and 0.83 for Bence-Jones proteins. All the D paraproteins investigated were of the lambds-type.
mesh_terms: D001536:Bence Jones Protein / Q000032:analysis*; D006801:Humans; D007122:Immunoelectrophoresis; D007070:Immunoglobulin A / Q000032:analysis; D007072:Immunoglobulin D / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007147:Immunoglobulin Light Chains / Q000032:analysis*; D007075:Immunoglobulin M / Q000032:analysis; D008259:Macroglobulins / Q000032:analysis*; D010265:Paraproteinemias / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A; D007072:Immunoglobulin D; D007074:Immunoglobulin G; D007147:Immunoglobulin Light Chains; D007075:Immunoglobulin M; D008259:Macroglobulins; D001536:Bence Jones Protein
vernacular_title: Opredelenie tipa paraproteinov i belkov Bens-Dzhonsa metodom immunoelektroforeza