PRECIPITATION MEMBRANE EFFECTS IN BIOLOGIC MEMBRANES - ROLE OF CALCIUM

被引:12
作者
AYALON, A
BAHR, G
HIRSCHAYALON, P
机构
[1] HEBREW UNIV JERUSALEM,HADASSAH HOSP & MED SCH,DEPT PEDIAT SURG,JERUSALEM,ISRAEL
[2] UNIV COLOGNE,INST BIOCHEM,D-5000 COLOGNE 41,FED REP GER
关键词
D O I
10.1007/BF01869340
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Biologic membranes display rectification of electrical current, as well as other properties, in many respects, similar to precipitation membranes. The experiments reported here, performed in frog skin, show that these characteristics are dependent upon the presence of calcium. Upon elimination of calcium from the bathing solution, the property of electrical rectification is lost, the current-voltage relation assuming a linear form. Read-ministration of calcium brings about complete recovery of the rectification pattern. This behavior is analogous to chemical deconditioning of precipitation membranes. Our findings support the assumption that the binding of calcium in biologic membranes produces electrical effects characteristic of precipitation membranes. © 1979 Springer-Verlag New York Inc.
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收藏
页码:7 / 14
页数:8
相关论文
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