EFFECTS OF CALCIUM-EGTA BUFFERS ON ACTIVE CALCIUM-TRANSPORT IN INSIDE-OUT RED-CELL MEMBRANE-VESICLES

被引：46

作者：

SARKADI, B ^{[1
]}

SCHUBERT, A ^{[1
]}

GARDOS, G ^{[1
]}

机构：

[1] UNIV AGR SCI GODOLLO,DEPT PHYS,GODOLLO,HUNGARY

来源：

EXPERIENTIA | 1979年 / 35卷 / 08期

关键词：

D O I：

10.1007/BF01949932

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：

In inside-out red cell membrane vesicles, the free calcium concentration half-maximally stimulating active calcium uptake is about 2 orders of magnitude smaller in a calcium-EGTA buffer than in media containing unbuffered calcium. In calcium-EGTA buffer, the maximum rate of calcium uptake is determined by the total calcium concentration present. A possible model for explaining these findings is presented. © 1979 Birkhäuser Verlag.

引用

页码：1045 / 1047

页数：3

共 7 条

[1] PLASMA-MEMBRANE CA2+ TRANSPORT - STIMULATION BY SOLUBLE-PROTEINS [J].

HINDS, TR ;

LARSEN, FL ;

VINCENZI, FF .

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1978, 81 (02) :455-461

[2] STIMULATION OF CALCIUM-TRANSPORT IN INSIDE-OUT VESICLES OF HUMAN ERYTHROCYTE-MEMBRANES BY A SOLUBLE CYTOPLASMIC ACTIVATOR [J].

MACINTYRE, JD ;

GREEN, JW .

BIOCHIMICA ET BIOPHYSICA ACTA, 1978, 510 (02) :373-377

[3]

MACINTYRE JD, 1976, J GEN PHYSIOL, V68, pA12

[4] ASSOCIATION OF (CA+MG)-ATPASE ACTIVITY WITH ATP-DEPENDENT CA UPTAKE IN VESICLES PREPARED FROM HUMAN ERYTHROCYTES [J].

QUIST, EE ;

ROUFOGALIS, BD .

JOURNAL OF SUPRAMOLECULAR STRUCTURE, 1977, 6 (03) :375-381

[5] KINETICS OF ACTIVE CALCIUM-TRANSPORT IN INSIDE-OUT RED-CELL MEMBRANE-VESICLES [J].

SARKADI, B ;

MACINTYRE, JD ;

GARDOS, G .

FEBS LETTERS, 1978, 89 (01) :78-82

[6]

SCHATZMANN HJ, 1973, J PHYSIOL-LONDON, V235, P551, DOI 10.1113/jphysiol.1973.sp010403

[7] STUDIES ON A CA2+-DEPENDENT ATPASE OF HUMAN ERYTHROCYTE-MEMBRANES - EFFECTS OF CA2+ AND H+ [J].

WOLF, HU .

BIOCHIMICA ET BIOPHYSICA ACTA, 1972, 266 (02) :361-&

← 1 →