L AMINO-ACIDS AND D-GLUCOSE BIND STEREOSPECIFICALLY TO A COLLOIDAL CLAY

被引：71
作者：
BONDY, SC
HARRINGTON, ME
机构：
[1] UNIV COLORADO, MED CTR, DEPT NEUROL, DENVER, CO 80262 USA
[2] UNIV COLORADO, MED CTR, DEPT PHARMACOL, DENVER, CO 80262 USA
来源：
SCIENCE | 1979年 / 203卷 / 4386期
关键词：
D O I：
10.1126/science.424749
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：
L-Leucine, L-aspartate and D-glucose bind in a stereospecific manner to a colloidal clay, bentonite. This binding has high-affinity, saturable characteristics. The biologically uncommon enantiomers, D-leucine, D-asparatate and L-glucose, do not exhibit any selective absorption on bentonite. This difference between stereoisomers could account for the evolution of life forms possessing a great preponderance of L amino acids and D-glucose.
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页码：1243 / 1244
页数：2
相关论文
共 11 条
[1]  
BERNAL JD, 1966, PRINCIPLES BIOMOLECU, P1
[2]  
Bernstein W.J., 1972, Molecular Evolution, P151
[3]  
Degens E.T., 1971, PREBIOTIC BIOCH EVOL, P39
[4]  
FOX SW, 1972, MOL EVOLUTION ORIGIN, P66
[5]  
Hare P.E., 1967, Carnegie Institution of Washington Year Book, V66, P526
[6]  
HEDGES J, 1975, CARNEGIE I WASHINGTO, V74, P604
[7]  
LEHNINGER LA, 1970, BIOCHEMISTRY-US, P66
[8]  
Maillard L.C., 1912, COMPTES RENDUS LACAD, V156, P148
[9]   PREBIOTIC SYNTHESIS OF POLYPEPTIDES BY HETEROGENEOUS POLYCONDENSATION OF AMINO-ACID ADENYLATES [J].
PAECHTHO.M ;
BERGER, J ;
KATCHALS.A .
NATURE, 1970, 228 (5272) :636-&
[10]   THE ATTRACTIONS OF PROTEINS FOR SMALL MOLECULES AND IONS [J].
SCATCHARD, G .
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1949, 51 (04) :660-672
12