Peptide Modifications beginner
Amide Bonds in Peptides
Guide to amide bond chemistry, the fundamental linkage in peptide and protein structures.
By Encyclopeptide Editorial | 1 min read
amide peptide-bond chemistry modification
Overview
The amide bond (peptide bond) is the fundamental covalent linkage joining amino acids in peptides and proteins.
Chemistry
Formed by condensation of alpha-amino and alpha-carboxyl groups with loss of water. Partial double-bond character restricts rotation.
Characteristics
- Trans configuration: Preferred over cis (except Pro)
- Planar geometry: Due to resonance stabilization
- Hydrolysis: Enzymatic (proteases) or chemical (acid/base)
Biological Significance
Amide bond formation and cleavage are central to protein biosynthesis, digestion, and drug design.
References
- Source: ENCP Peptide Database
- Category: Peptide Modifications
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