Protein
Proteins are condensation polymers of amino acids made of amino acids linked together by
polypeptide links.
Primary Structure
Sequence of amino acids in the long chain which makes up the protein (polypeptide chain).
Secondary Structure
The peptide links form hydrogen bonds with each other meaning that the chain is not a straight
line. The hydrogen bonds are between C=O of one amino acid and the NH of another. The
shape of the chain is called the secondary structure. The most common secondary structure is
the alpha helix structure and another common beta pleated sheet.
Tertiary Structure
The chain of amino acids is often coiled and folded in a characteristic which identifies the
protein. Extra bonds form between the different parts of the polypeptide chain giving the
protein a 3D shape. It contains hydrogen, ionic and disulphide bonds alongside hydrophobic
interactions.
Proteins are condensation polymers of amino acids made of amino acids linked together by
polypeptide links.
Primary Structure
Sequence of amino acids in the long chain which makes up the protein (polypeptide chain).
Secondary Structure
The peptide links form hydrogen bonds with each other meaning that the chain is not a straight
line. The hydrogen bonds are between C=O of one amino acid and the NH of another. The
shape of the chain is called the secondary structure. The most common secondary structure is
the alpha helix structure and another common beta pleated sheet.
Tertiary Structure
The chain of amino acids is often coiled and folded in a characteristic which identifies the
protein. Extra bonds form between the different parts of the polypeptide chain giving the
protein a 3D shape. It contains hydrogen, ionic and disulphide bonds alongside hydrophobic
interactions.
