What is protein Structure

Protiens are polymer of amino acidsAmino acids are joined by peptide bondsPeptide bonds are formed by condensation4 different structures Primary structure is sequence of amino acids held together by peptide bonds Secondary structure is the folded amino acid polypeptide chain held together by hydrogen bonds - common structures alpha helix or beta sheets. Super secondary structures are combinations of alpha helix/ beta sheets and can be called motifs Tertiary structure is the overall structure of the polypeptide chain- it is 3-D and held together with hydrogen bonds, ionic bonds and disulfide bonds Quaternary structure is two or more polypeptide chains joined together