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Word: chymotrypsin (lookup in dictionary) (lookup stats)
Dates: during 1970-1979
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Usage:

...catalysts in all the chemical reactions necessary for life. The group's latest interest has been an enzyme called subtilisin, which is found in ordinary soil bacteria. As they investigated subtilisin's complex structure, the scientists realized that it had a curious similarity to another enzyme, chymotrypsin, common to all vertebrates, including man. While the overall molecular architecture of the two enzymes is quite different, they both have three identical groups of amino acids that form what Kraut calls their "business ends." It is at these spots that the chemicals involved in vital reactions are brought together...

Author: /time Magazine | Title: Science: Nature's Way | 11/29/1971 | See Source »

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