title: Isolation of an immunosuppressive peptide fraction from human plasma.
mesh_terms: D000645:Ammonium Sulfate / Q000494:pharmacology; D000818:Animals; D001798:Blood Proteins / Q000302:isolation & purification*; D002247:Carbon Isotopes; D011232:Chemical Precipitation; D003956:Dialysis; D004590:Electrophoresis, Paper; D004912:Erythrocytes / Q000276:immunology; D006462:Hemolytic Plaque Technique; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007165:Immunosuppression Therapy; D037102:Lectins / Q000494:pharmacology; D007930:Leucine / Q000378:metabolism; D008213:Lymphocyte Activation / Q000187:drug effects; D008214:Lymphocytes / Q000276:immunology; D051379:Mice; D010455:Peptides / Q000302:isolation & purification*; D013154:Spleen / Q000166:cytology; D014461:Ultracentrifugation; D014462:Ultrafiltration
chemical_list: D001798:Blood Proteins; D002247:Carbon Isotopes; D037102:Lectins; D010455:Peptides; D007930:Leucine; D000645:Ammonium Sulfate