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Giving a little more details to my colleagues' answers above, I would point out that the main characteristic of the protein synthesis, from the union of amino acids in the ribosome (process called "translation"), is the formation of the peptide bond. This is the most important characteristic of the secondary and tertiary structure of polypeptides and therefore of proteins. Peptide bond was discovered by Linnus Pauling and Robert Corey in the 1940s that determined that is a chemical bond with a rigid, planar structure which, Pauling pointed out, is a consequence of resonance interactions that give the peptide bond an about 40% double bond character.

Therefore, the backbone of a polypeptide chain is a linked sequence of rigid planar peptide groups which can rotate in different tortion angles (rotation angles or dihedral angles) giving the proper tertiary structure in a complex process called: "protein folding" in order to be a polypeptide molecule with biological activity.

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Related Questions

What molecule is formed from polypeptides?

protein


Why doesn't ninhydrin react with polypeptides?

Ninhydrin does react with polypeptides, specifically with the amino group of amino acids present in the polypeptide chain. This reaction leads to the formation of a colored compound that can be used for detection and analysis of amino acids and polypeptides.


What chemical reaction is used to synthesize macromolecules like polypeptides and starch?

The chemical reaction used to synthesize macromolecules like polypeptides and starch is called dehydration synthesis or condensation reaction. This reaction involves joining monomers together by removing a water molecule to form a covalent bond between them.


How are polypeptides held together?

Polypeptides are held together by peptide bonds, which are formed through a condensation reaction between the amino group of one amino acid and the carboxyl group of another. These bonds link amino acids together to form a linear chain, which is the primary structure of a protein.


Which are formed by reaction?

Reaction products are formed.


What proteins are formed by the linkage of monomers?

Polypeptides are formed by the linkage of amino acid monomers through peptide bonds.


Are proteins also peptides?

PRoteins are formed as polypeptides from ribosomes. The polypeptide undergoes biophysical and chemical changes to get 2D and further 3D structure. So proteins in general, are polypeptides that are folded with cetrain stable conformation.


What elements make up polypeptides?

Polypeptides are made up of amino acids, which are organic compounds containing an amino group, a carboxyl group, and a side chain. Amino acids are linked together by peptide bonds, formed through a condensation reaction between the amino group of one amino acid and the carboxyl group of another. The sequence of amino acids in a polypeptide chain determines its unique three-dimensional structure and function.


How are proteins formed by using the concept of using polymerization?

Proteins are formed by using the concept of using polymerization. This is a process whereby the amino aids are polymerized to form polypeptides or proteins.


What is the term for a substance that is formed by a chemical reaction?

A product is a substance that is formed by a chemical reaction.


What is the name for a substance formed in a reaction?

The substances formed in a chemical reaction are called products


What are Polypeptides are assembled from?

Polypeptides are chains of amino acids.