A polypeptide chain is a single, linear sequence of amino acids linked by peptide bonds, forming the primary structure of proteins. It folds into specific three-dimensional shapes, determining the protein's function and interactions within biological systems.

Polypeptide Chain

polypeptide chain

linear sequence of amino acids

Peptide bonds are covalent chemical bonds that link amino acids together in a polypeptide chain, forming the primary structure of proteins. They are formed through a dehydration synthesis reaction between the carboxyl group of one amino acid and the amino group of another, resulting in the release of a water molecule.

peptide bonds

primary structure of proteins

Three-dimensional shapes, also known as 3D shapes, have depth in addition to height and width, making them occupy space in a way that two-dimensional shapes do not. They are characterized by properties such as volume, surface area, and vertices, and are foundational in fields like geometry, engineering, and computer graphics.

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