title: Various molecular weights for the heavy chains of human monoclonal IgM immunoglobulins.
mesh_terms: D002021:Buffers; D006146:Guanidines; D006579:Heterozygote; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis; D008970:Molecular Weight; D010710:Phosphates; D014461:Ultracentrifugation; D008258:Waldenstrom Macroglobulinemia / Q000276:immunology
chemical_list: D002021:Buffers; D006146:Guanidines; D007075:Immunoglobulin M; D007136:Immunoglobulins; D010710:Phosphates