STABILITY OF ASYMMETRIC PHOSPHOLIPID MEMBRANES

被引:78
作者
PAPAHADJOPOULOS, D
OHKI, S
机构
关键词
D O I
10.1126/science.164.3883.1075
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Bilayers (black films) composed of phosphatidylserine are unstable under conditions of asymmetric distribution of calcium or hydrogen ions with respect to the membrane. Addition of calcium ions to the solution (100 millimolar sodium chloride, pH 7.0) on one side only, produces lowering of the direct-current resistance and results in breaking of the membrane. However, with calcium ions on both sides the membranes are stable and show very high electrical resistance.
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页码:1075 / +
页数:1
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共 22 条
[1]  
Bangham A D, 1968, Prog Biophys Mol Biol, V18, P29, DOI 10.1016/0079-6107(68)90019-9
[2]   DIFFUSION OF UNIVALENT IONS ACROSS LAMELLAE OF SWOLLEN PHOSPHOLIPIDS [J].
BANGHAM, AD ;
STANDISH, MM ;
WATKINS, JC .
JOURNAL OF MOLECULAR BIOLOGY, 1965, 13 (01) :238-+
[3]   BIOPHYSICAL PROPERTIES OF PHOSPHOLIPIDS .I. INTERACTION OF PHOSPHATIDYLSERINE MONOLAYERS WITH METAL IONS [J].
BANGHAM, AD ;
PAPAHADJOPOULOS, D .
BIOCHIMICA ET BIOPHYSICA ACTA, 1966, 126 (01) :181-+
[4]  
BUTLER JAV, 1968, PROGRESS BIOPHYSI ED, P29
[5]   LIGHT SCATTERING AND BIREFRINGENCE CHANGES DURING NERVE ACTIVITY [J].
COHEN, LB ;
KEYNES, RD ;
HILLE, B .
NATURE, 1968, 218 (5140) :438-&
[6]   THE ACTION OF CALCIUM ON THE ELECTRICAL PROPERTIES OF SQUID AXONS [J].
FRANKENHAEUSER, B ;
HODGKIN, AL .
JOURNAL OF PHYSIOLOGY-LONDON, 1957, 137 (02) :218-244
[7]   CHARGES AND POTENTIALS AT NERVE SURFACE - DIVALENT IONS AND PH [J].
HILLE, B .
JOURNAL OF GENERAL PHYSIOLOGY, 1968, 51 (02) :221-&
[8]   RECONSTITUTION OF CELL MEMBRANE STRUCTURE IN VITRO AND ITS TRANSFORMATION INTO AN EXCITABLE SYSTEM [J].
MUELLER, P ;
RUDIN, DO ;
TIEN, HT ;
WESCOTT, WC .
NATURE, 1962, 194 (4832) :979-&
[9]   INFLUENCE OF PH SODIUM AND CALCIUM IONS ON DC RESISTANCE OF BLACK EGG LECITHIN-CHOLESTEROL FILMS [J].
OHKI, S ;
GOLDUP, A .
NATURE, 1968, 217 (5127) :458-&
[10]  
OHKI S, IN PRESS