Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid and the amino group of another.

肽一种自然或人工的合成物，包括二个或二个以上氨基酸，通过一个氨基酸的酸基和另一个的羧基结合而成。

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It is an important precursor of several amino acids, and also ACTS as a source of the amino group in various metabolic reactions.

它是许多氨基酸的重要前体，也是许多反应的氨基基团的来源。

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In addition to the amino and carboxyl groups possessed by all amino acids(except proline), the R group of some amino acids can ionize.

另外，所有的氨基酸都拥有氨基和羧基（除了脯氨酸），一些氨基酸的R基能电离收藏。

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Now, being phosphorylated means that a phosphate group has been added to the protein, and phosphate groups can only be added to certain amino acids along a protein.

磷酸化的意思是,蛋白上连接了一个磷酸基团,这个磷酸基团只能连在,蛋白中某些特定的氨基酸上

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Amino acids link together to form a protein when the amine group on one reacts with the acid group on the next.

ECONOMIST: Folding stuff