Primary structure
The Sequence of amino acids in the polypeptide chain
Secondary Structure
Hydrogen bonds form between amino acids in the chain.
This makes it coil in to an alpha helix or fold in to a beta pleated sheet.
Tertiary Structure
Coiled or folden chains of amino acids are then coiled and folded further.
More bonds form between different parts of the polypeptide chain.
Proteins made from a SINGLE polypeptide chain, the tertiary structure is their final 3D shape
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