Abstract
Incorporations of radioactive mannose, galactose and fucose into MOPC 104E mouse plasma-cell tumour suspensions suggest a stepwise addition of carbohydrate residues to immunoglobulin M (IgM) during the process of secretion. Mannose and glucosamine residues are added at an early stage, whereas galactose and fucose are added just before, or at the time that, IgM leaves the cell. Free light chains secreted in excess by the same tumour cells incubated with mannose, galactose or fucose contained barely detectable amounts of radioactivity.
MeSH Terms
Animals
Antigen-Antibody Complex
Carbonates/biosynthesis
Chemical Precipitation
Chromatography
Electrophoresis, Disc
Fucose/metabolism
Galactose/metabolism
Hydrolysis
Immune Sera
Immunoglobulins/biosynthesis
In Vitro Techniques
Leucine/metabolism
Mannose/metabolism
Mice
Neoplasms, Experimental/metabolism
Plasmacytoma/metabolism
Rabbits
Time Factors
Tritium
Chemicals
Antigen-Antibody Complex
Carbonates
Immune Sera
Immunoglobulins
Tritium
Fucose
Leucine
Mannose
Galactose
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Parkhouse R M
Melchers F
References (18)
18 references, click to expand
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