A possible precursor of immunoglobulin light chains.

Amino Acids/metabolism Animals Carbon Isotopes Cell Line Cell-Free System Cells, Cultured Chromatography, Paper Chromatography, Thin Layer Electrophoresis, Paper Electrophoresis, Polyacrylamide Gel Immunoglobulins/analysis,biosynthesis Methionine/metabolism Mice Microsomes/metabolism Molecular Weight Multiple Myeloma/metabolism Neoplasms, Experimental/metabolism Peptides/analysis RNA, Messenger/metabolism Rabbits Reticulocytes/metabolism Ribosomes/metabolism Sulfur Isotopes

Amino Acids Carbon Isotopes Immunoglobulins Peptides RNA, Messenger Sulfur Isotopes Methionine