peptide bond

American  

noun

Biochemistry.

1. a covalent bond formed by joining the carboxyl group of one amino acid to the amino group of another, with the removal of a molecule of water.

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peptide bond British  

noun

1. biochem a chemical amide linkage, –NH–CO–, formed by the condensation of the amino group of one amino acid with the carboxyl group of another

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peptide bond Scientific  

1. The chemical bond formed between amino acids, constituting the primary linkage in all protein structures. In a peptide bond, the carboxyl group (COOH) of one amino acid bonds with the amino group (NH ₂) of another, forming the sequence CONH and releasing water (H ₂ O).

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Etymology

Origin of peptide bond

First recorded in 1930–35

Example Sentences

The molecule, methyl isocyanate, has a structure that is chemically similar to a peptide bond, which is what holds amino acids together in proteins.

From Science Magazine

Moreover, he was privy to a discussion in which the fundamental blunder about the shape of the peptide bond was made.

From Literature

When a peptide bond forms, a water molecule is released.

From Scientific American

Pauling had cracked the a-helix by ruthlessly following up his knowledge that the peptide bond was flat.

From Literature

When a water molecule encounters the weakened peptide bond, it likely now has enough energy to break it, recombining with the broken ends to reform the loose amino acid.

From Scientific American