Okamura, K Purification of C 1S , a subunit of the first component of complement from human plasma. [electronic resource] - Biochimica et biophysica acta Jan 1973 - 252-7 p. digital Publication Type: Journal Article ISSN: 0006-3002 Standard No.: 10.1016/0005-2795(73)90092-5 doi Subjects--Topical Terms: AcetatesAnimalsCalciumChromatographyChromatography, DEAE-CelluloseChromatography, GelComplement System Proteins--isolation & purificationElectrophoresis, DiscEnzyme ActivationEsterasesEstersGoats--immunologyHumansImmunoelectrophoresisMacromolecular SubstancesMolecular WeightSerum Globulins--analysisSolubilityTrypsinTyrosineUltracentrifugation