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.
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页码：1243 / 1244
页数：2
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