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Which atoms and groups are lost when a peptide bond forms?
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Amino acid
The structure and function of amino acids.
When a peptide bond forms between two amino acids, it occurs through a condensation reaction. During this process, the following components are lost:1
- An hydroxyl group (—OH) is lost from the carboxyl group of one amino acid.1
- A hydrogen atom (H) is lost from the amino group of the second amino acid.1
Together, these atoms form a molecule of water () as a byproduct of the reaction. The remaining parts of the two amino acids are then linked by an amide bond, which is referred to as a peptide bond.12