期刊名称：Studia Universitatis Moldaviae: Stiinte Sociale
印刷版ISSN：1814-3199
电子版ISSN：2345-1017
出版年度：2007
卷号：7
期号：7
页码：166-172
出版社：Moldova State University
摘要：Basic 7S globulin (Bg) immunologically and structurally distinct from 7S and 11S seed storage globulinshas been detected in soybean Glycine max seeds long time ago [1-3]. Recently, Bg was described as a dimerof subunits [4]. Each Bg subunit synthesized as a pro-polypeptide undergoes proteolytic processing into disulfidelinked (27 kD) and (16 kD) chains, and glycosylation. Small amount of Bg precursor was found noncleavedin mature Bg preparations [5]. Bg-like proteins might be widely distributed in legume species [6-8].Bg was found in the plasma membranes and the middle lamella of the cell wall on the side facing to theintercellular space [9]. When immersed in hot water, mature soybean seeds release large amounts of Bg [7].Bg forms complexes with insulin and insulin-like growth factors [10-12] and binds leginsulin, a hormonelike4-kD peptide isolated from the radicles of germinating soybean seeds and characterized [4,13,14]. Bghas protein kinase activity [15] that is stimulated by leginsulin [13], suggesting that Bg is a part of the plantcellular signal transduction system [14].
