Acid-labile amino acid precursors in the Murchison meteorite. II. A search for peptides and amino acyl amides.

Details Acid-labile amino acid precursors in the Murchison meteorite. II. A search for peptides and amino acyl amides. Acid-labile amino acid precursors in the Murchison meteorite. II. A search for peptides and amino acyl amides.

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976orli....7..343c&link_type=abstract

Origins of Life, Volume 7, Issue 4, pp.343-348

Computer Science

9

Scientific paper

The basic fraction of the acid-labile amino acid precursors found in hot water extracts of the Murchison meteorite was treated with ninhydrin under conditions that give destruction of free amino acids but allow nearly complete recovery of peptides and amino acylamides. After this treatment and a subsequent acid hydrolysis, the amount of amino acids found corresponded to less than 30 per cent of the precursor content of the basic fraction. Since only 30 per cent of the total extract precursors are found in the basic fraction, these results indicate that such compounds, if present, account for no more than 9 mole per cent of the total acid-labile amino acid precursors of the meteorite hot water extract.

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