Word: proteins
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Dates: during 1960-1969
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Euglena gracille, a simple, one-celled organism--used in the laboratory to measure the level of vitamin B-12 in the blood of anemic patients--is now being employed in studies to determine the effect of metal deficiencies on nucleic acid and protein metabolism...
...fourteenth year at Harvard, Doty has made other significant contributions in the area of protein synthesis. In addition to his work with DNA, he is currently examining the role of RNA, the other nucleic acid, which is believed to contribute to protein synthesis by controlling the unwinding of the genetic information carried...
...risk is nearly always needless, says Dr. Bardenwerper. Although tetanus (lockjaw) itself can be deadly, it can best be guarded against with a toxoid shot, which is made from killed tetanus bacteria and, unlike the antitoxin, contains no animal protein and virtually never causes serious reactions. The public, complains Dr. Bardenwerper, has had too little prodding from doctors on the importance of vaccination with tetanus toxoid, and still less on the need for booster shots every four or five years. Even if the patient has had no recent shots, there is generally no need for antitoxin: before tetanus can develop...
...incubating ribonucleic acid (RNA) and protein from normal red cells with immature cells from victims of sickle-cell anemia, Cleveland's Dr. Austin S. Weisberger effected a crossover: the growing cells picked up the normal RNA and protein and, with it, the power to make normal hemoglobin. Cautiously, Dr. Weisberger hopes that similar methods may be developed for treating cancers of the blood...
Certain groups of three bases may not determine an amino acid. If in the original chain ABC was such a "nonsense group," the change to BBC in the new chain will not affect the formation of the protein, Crick pointed out. Thus restoring the second group ACB restores the protein...