Peptidisidos

Peptidisidos is a term that appears sporadically in the scientific literature but has no widely accepted definition in biochemistry. In many cases it is encountered as a mistranslation, neologism, or misnomer for peptide bonds or peptidic linkages. There is no formal definition, standard nomenclature, or consensus on its structure, biosynthesis, or function.

Usage and interpretation: Peptide bonds are the standard covalent linkages that connect amino acids within a peptide or protein, defined as amide bonds between the carboxyl end of one amino acid and the amino group of the next. When peptides form crosslinks to other molecules or within proteins, terms such as isopeptide bonds or crosslinks are used. Some rare texts may describe Peptidisidos as these linkages, but such usage is not widely accepted in the biochemical community.

Relation to broader topics: The concept overlaps with protein chemistry, peptide synthesis, and post-translational modifications. In established terminology, the relevant bond classes include peptide bonds, isopeptide bonds, and disulfide bonds when applicable. The lack of a standardized definition for Peptidisidos means sources should be consulted carefully to determine intended meaning in any given context.

See also: peptide bond; peptide; isopeptide bond; amide bond; crosslink.