Many scientists find it strange that every living thing on our planet forms its proteins from the exact same set of 20 amino acids. Why that specific set? Scientists know there are many more amino acids out there. A new study suggests it's no accident. Rather, the kinds of amino acids used in proteins are more likely to link up together because they react together more efficiently and have few inefficient side reactions.
from Latest Science News -- ScienceDaily https://ift.tt/31b988O
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