Word: amino
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Dates: during 1960-1969
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...University of experiments were devoted to the ultimate genetic . The ordering of bases in nucleic the ordering of amino proteins, the principal living matter...
...life"-he ground the material and boiled it, first in water, then in alcohol, then for ten hours in dilute sulphuric acid. After that, he simmered his sample for 22 hours in hydrochloric acid. The well cooked extract contained a rich assortment of chemicals characteristic of living organisms, including amino acids and simple sugars...
...Ammono" chemistry, says the astronomer, is very different from earth's familiar "aquo" chemistry, but there are vital similarities. Both systems produce some well-known compounds, among them the amino acids of which proteins are built. Firsoff is certain that when the first living organisms evolved on earth, the atmosphere above the primeval ocean contained ammonia but no free oxygen. When oxygen accumulated in the atmosphere and ammonia disappeared, life on earth adapted itself to the new conditions. The amino acids that form earth's proteins, says Firsoff, are relics of the prehistoric conditions under which earth life...
Lederberg is familiar with all the reasons why nonearthly life will probably perish when exposed to an earthly environment. But he points out that earth's scientists know only one kind of life, the familiar earthly form based on amino acids linked into protein molecules. This sort of life requires a watery environment and a narrow range of temperature. Elsewhere in the universe there may be living organisms that contain no amino acids, need no water, and can live and multiply at extremely high or extremely low temperatures. Such exobiota might do better on earth than native living creatures...
...chauvinistic trade name of Beecham Research Laboratories Ltd. for 6[D(-) a-amino-phenylacetamido] penicillanic acid. No simplified generic term or U.S. trade name has yet been adopted...