ACID-LABILE AMINO-ACID PRECURSORS IN MURCHISON METEORITE .1. CHROMATOGRAPHIC FRACTIONATION

被引：39
作者：
CRONIN, JR
机构：
[1] ARIZONA STATE UNIV, DEPT CHEM, TEMPE, AZ 85281 USA
[2] ARIZONA STATE UNIV, CTR METEORITE STUDIES, TEMPE, AZ 85281 USA
来源：
ORIGINS OF LIFE AND EVOLUTION OF BIOSPHERES | 1976年 / 7卷 / 04期
关键词：
D O I：
10.1007/BF00927928
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The amino acid content of a hot water extract of the Murchison meteorite can be increased by over 100% by subjecting the extract to acid hydrolysis. The acid-labile compounds in the extract that account for this increase were fractionated by column chromatography on a cation exchange resin. Seventy mole percent behaved as neutral or acidic compounds and were eluted from the column with an initial water wash. The remaining 30 mole percent (basic precursors) were retained on the column and were eluted with the free amino acids by aqueous NH4OH. The acid-labile amino acid precursors in the water eluate could be retained and further fractionated on an anion exchange column, indicating that they are acidic compounds.
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页码：337 / 342
页数：6
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