Protein Structure

Protein structure is broken down into four levels:

• Primary structure - the "linear" sequence of amino acids.

• Secondary structure is "local" ordered structure brought about via hydrogen bonding mainly within the peptide backbone.

• Tertiary structure is the "global" folding of a single polypeptide chain.

• Quartenary structure involves the association of two or more polypeptide chains into a multi-subunit structure.

This video below explains about Protein Structure and the four levels