title: Raman spectra and conformational structures of Fab mu and (Fc)5 mu fragments of cryoglobulin IgM-kappa McE.
abstract: Raman spectra have been obtained on aqueous solutions of the following human immunoglobulins: IgM-kappa McE, IgG-kappa Ger, IgM-kappa WSm and IgG-lambda Gui. The former two species exhibit the property of cryoprecipitation. Comparison of the spectra shows that all immunoglobulins have similar secondary structures, predominantly of the beta-sheet type. Fab mu and (Fc)5 mu fragments of IgM-kappa McE also yield Raman spectra which indicate closely similar secondary structures. Minor differences among the spectra can be explained by differences in amino acid compositions of the respective proteins.
mesh_terms: D003450:Cryoglobulins; D007140:Immunoglobulin Fab Fragments; D007141:Immunoglobulin Fc Fragments; D007074:Immunoglobulin G; D007147:Immunoglobulin Light Chains; D007075:Immunoglobulin M; D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains; D011487:Protein Conformation; D013059:Spectrum Analysis, Raman
chemical_list: D003450:Cryoglobulins; D007140:Immunoglobulin Fab Fragments; D007141:Immunoglobulin Fc Fragments; D007074:Immunoglobulin G; D007147:Immunoglobulin Light Chains; D007075:Immunoglobulin M; D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains