Hemagglutinin, soybean

Arachin, the counterpart of glycinin in peanuts, consists of subunits of 60,000—70,000 mol wt which on reduction with 2-mercaptoethanol yield polypeptides of 41,000—48,000 and 21,000 mol wt (17) analogous to the behavior of glycinin. In addition to the storage proteins, oilseeds contain a variety of minor proteins, including trypsin inhibitors, hemagglutinins, and enzymes. Examples of the last are urease and Hpoxygenase in soybeans. 

Hemagglutinins -m soybeans and other oilseeds [SOYBEANS AND OTHER OILSEEDS] (Vol 22)... 

Lectins (hemagglutinins) in raw soybeans can inhibit growth and cause death in animals. They are proteins that bind to carbohydrate-containing molecules and cause blood clotting. Fortunately lectins are degraded rapidly by heating. Soybeans also contain growth inhibitors that are not easily deactivated by heat treatment. 

Partially purified soybean hemagglutinin was prepared from untoasted soybean flour (Soyafluff 200W, Central Soya, Chicago, IL) according to the method of Liener (11). Final purification was achieved by chromatography on hydroxylapatite, prepared Current address Research Division. Science Park, Smithville, TX 78957. 

Nachbar and coworkers investigated the composition of Ehrlich ascites, tumor-cell plasma membrane by using a series of lectin-Sepharose adsorbents (R. communis hemagglutinin, con A, wheat-germ agglutinin, and soybean agglutinin).868 The Ehrlich cells... 

Abbreviations used BP, binding proteins ConA, Concanavalin A GNA, snowdrop lectin HA, hemagglutinin HyBP, hyaluronan-binding protein MBP, mannose-binding protein SAP, serum amyloid Pcoinionent SBA, soybean a lutinin var, variable WGA,... 

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