Ion-channels of cyclic template-assembled alamethicins that emulate the pore structure predicted by the barrel-stave model

被引:40
作者
Matsubara, A
Asami, K
Akagi, A
Nishino, N
机构
[1] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN
[2] KYUSHU INST TECHNOL,DEPT APPL CHEM,KITAKYUSHU,FUKUOKA 804,JAPAN
关键词
D O I
10.1039/cc9960002069
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Single channel measurements of cyclic template-assembled synthetic peptides (TASP) AL(n)-cyclo2n [AL = Ac-UPUAUAQUVUGLUPVUUG-, U = alpha-aminoisobutyric acid; cyclo2n = cyclo(-Lys-Abz-)(n), Abz = m-aminobenzoic acid] in lipid bilayer membranes reveal that the lowest and the next lowest conductance states of the alamethicin ion-channel are made up of three and four parallel helices, respectively, as predicted by the barrel-stave model.
引用
收藏
页码:2069 / 2070
页数:2
相关论文
共 20 条
[11]   SYNPORINS - SYNTHETIC PROTEINS THAT EMULATE THE PORE STRUCTURE OF BIOLOGICAL IONIC CHANNELS [J].
MONTAL, M ;
MONTAL, MS ;
TOMICH, JM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1990, 87 (18) :6929-6933
[12]   FORMATION OF BIMOLECULAR MEMBRANES FROM LIPID MONOLAYERS AND A STUDY OF THEIR ELECTRICAL PROPERTIES [J].
MONTAL, M ;
MUELLER, P .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1972, 69 (12) :3561-3566
[13]   ACTION POTENTIALS INDUCED IN BIOMOLECULAR LIPID MEMBRANES [J].
MUELLER, P ;
RUDIN, DO .
NATURE, 1968, 217 (5130) :713-&
[14]   SOLUTION PHASE SYNTHESIS OF ALAMETHICIN-I [J].
NAGARAJ, R ;
BALARAM, P .
TETRAHEDRON, 1981, 37 (06) :1263-1270
[15]   PEPTAIBOPHOL ANTIBIOTICS .3. HIGH-RESOLUTION AND FIELD DESORPTION MASS-SPECTROMETRY STUDIES AND REVISED STRUCTURES OF ALAMETHICIN-I AND ALAMETHICIN-II [J].
PANDEY, RC ;
COOK, JC ;
RINEHART, KL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (26) :8469-8483
[16]   TEMPLATE-ASSEMBLED MELITTIN - STRUCTURAL AND FUNCTIONAL-CHARACTERIZATION OF A DESIGNED, SYNTHETIC CHANNEL-FORMING PROTEIN [J].
PAWLAK, M ;
MESETH, U ;
DHANAPAL, B ;
MUTTER, M ;
VOGEL, H .
PROTEIN SCIENCE, 1994, 3 (10) :1788-1805
[17]   STRUCTURE AND FUNCTION OF CHANNEL-FORMING PEPTAIBOLS [J].
SANSOM, MSP .
QUARTERLY REVIEWS OF BIOPHYSICS, 1993, 26 (04) :365-421
[18]  
SANSOM MSP, 1993, EUR BIOPHYS J BIOPHY, V22, P105, DOI 10.1007/BF00196915
[19]  
TAKAGI M, 1965, Annual Report of Biological Works Faculty of Science Osaka University, V13, P107
[20]   Engineering stabilized ion channels: Covalent dimers of alamethicin [J].
You, SC ;
Peng, SY ;
Lien, L ;
Breed, J ;
Sansom, MSP ;
Woolley, GA .
BIOCHEMISTRY, 1996, 35 (20) :6225-6232