Soybean beta-conglycinin alpha subunit is phosphorylated on two distinct serines by protein kinase CK2 in vitro.

Abstract

Protein kinase CK2 purified from the yeast Yarrowia lipolytica was used to phosphorylate soybean beta-conglycinin alpha subunit. CK2 is known to phosphorylate serines and threonines in the consensus sequence Ser/Thr-X-X-Glu/Asp/SerP/TyrP. Beta-conglycinin alpha subunit (68 kDa) presents seven consensus sequences, but only 0.5-1 mol P/mol alpha subunit was… (More)

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