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

被引：70

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.

引用

页码：1243 / 1244

页数：2

共 11 条

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