title: Ammonium sulfate fractionation of sera: mouse, hamster, guinea pig, monkey, chimpanzee, swine, chicken, and cattle.
abstract: Optimal (NH(4))(2)SO(4) concentrations were sought for serum fractionation in order to obtain the gamma globulin as free as possible from other serum components while maintaining a reasonable recovery. Various ammonium sulfate concentrations were used to fractionate sera from mice, hamsters, guinea pigs, monkeys, chimpanzees, swine, chicken, and cattle. All precipitates and supernatants were analyzed by electrophoresis to study the effects of various treatments on the composition of these materials. Approximately 75% of all the gamma globulins were recovered when each serum was fractionated with its optimal sulfate concentration. These optimals were determined to be as follows: three precipitations in 35% saturated ammonium sulfate (SAS) for hamster, chimpanzee, swine, and chicken serum; one precipitation in 35% SAS followed by two in 40% SAS for mouse and guinea pig serum; one precipitation in 30% SAS and then two in 40% SAS for monkey serum; and one precipitation in 30% SAS followed by two in 35% SAS for cattle serum.
mesh_terms: D000510:Alpha-Globulins / Q000032:analysis; D000645:Ammonium Sulfate; D000818:Animals; D001609:Beta-Globulins / Q000032:analysis; D001769:Blood; D001774:Blood Chemical Analysis; D001797:Blood Protein Electrophoresis; D001798:Blood Proteins / Q000032:analysis; D002417:Cattle; D011232:Chemical Precipitation; D002645:Chickens; D006224:Cricetinae; D003720:Densitometry; D005069:Evaluation Studies as Topic; D006168:Guinea Pigs; D000882:Haplorhini; D007106:Immune Sera; D051379:Mice; D002679:Pan troglodytes / Q000276:immunology; D012709:Serum Albumin / Q000032:analysis; D013053:Spectrophotometry; D013552:Swine / Q000276:immunology; D005719:gamma-Globulins / Q000032:analysis / Q000302:isolation & purification
chemical_list: D000510:Alpha-Globulins; D001609:Beta-Globulins; D001798:Blood Proteins; D007106:Immune Sera; D012709:Serum Albumin; D005719:gamma-Globulins; D000645:Ammonium Sulfate