A unified procedure for the correction of liquid junction potentials in patch clamp experiments on endo- and plasma membranes

被引:17
作者
Amtmann, A
Sanders, D
机构
关键词
patch clamp; liquid junction potentials; salt bridges; membranes; ion channels;
D O I
10.1093/jxb/48.Special_Issue.361
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Correct determination of absolute values and polarities of liquid junction potentials (LJPs) is essential in patch clamp experiments for the estimation of ionic selectivities and activation voltages of ion channels. A simple approach for the correction of membrane voltages for LJPs has been developed. The method covers all combinations of LJPs between the solutions of bath, patch pipette and reference salt bridge and is applicable to all patch configurations on plasma membranes and endomembranes.
引用
收藏
页码:361 / 364
页数:4
相关论文
共 7 条
[1]   TRANSMEMBRANE MEASUREMENTS ACROSS BIOENERGETIC MEMBRANES [J].
AZZONE, G ;
BENZ, R ;
BERTL, A ;
COLOMBINI, M ;
CROFTS, A ;
DILLEY, R ;
DIMROTH, P ;
DUTTON, PL ;
FELLE, H ;
HAROLD, F ;
JUNGE, W ;
KABACK, HR ;
KNAFF, D ;
KRULWICH, T ;
LODISH, H ;
MALMSTROM, B ;
MALONEY, P ;
MANNELLA, C ;
PADAN, E ;
PAPA, S ;
ROTTENBERG, H ;
RUDNICK, G ;
RYDSTROM, J ;
SILVERSTEIN, T ;
SKULACHEV, V ;
SLAYMAN, C ;
TEDESCHI, H ;
WIKSTROM, M ;
WILSON, TH .
BIOCHIMICA ET BIOPHYSICA ACTA, 1993, 1183 (01) :1-3
[2]   LIQUID JUNCTION POTENTIALS AND SMALL-CELL EFFECTS IN PATCH-CLAMP ANALYSIS [J].
BARRY, PH ;
LYNCH, JW .
JOURNAL OF MEMBRANE BIOLOGY, 1991, 121 (02) :101-117
[4]  
BARRY PH, 1970, J MEMBRANE BIOL, V3, P93, DOI [10.1007/BF01868022, 10.1007/BF01868023]
[5]  
BARRY PH, 1989, METHOD ENZYMOL, V171, P678
[6]   ELECTRICAL MEASUREMENTS ON ENDOMEMBRANES [J].
BERTL, A ;
BLUMWALD, E ;
CORONADO, R ;
EISENBERG, R ;
FINDLAY, G ;
GRADMANN, D ;
HILLE, B ;
KOHLER, K ;
KOLB, HA ;
MACROBBIE, E ;
MEISSNER, G ;
MILLER, C ;
NEHER, E ;
PALADE, P ;
PANTOJA, O ;
SANDERS, D ;
SCHROEDER, J ;
SLAYMAN, C ;
SPANSWICK, R ;
WALKER, A ;
WILLIAMS, A .
SCIENCE, 1992, 258 (5084) :873-874
[7]  
NEHER E, 1992, METHOD ENZYMOL, V207, P123