Amino Acids, Proteins and Porphyrins
Quaternary structure of protein is
|A||The arrangement sequence of amino acids in the polypeptide chain|
|B||Inter relation between amino acids in a single polypeptide chain|
|C||Inter relation of amino acid in 2 polypeptide chains|
|D||The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains|
a. Protein that contain two or more polypeptide chains associated by non-covalent forces are said to exhibit quaternary structure.
b. The arrangement sequence of amino-acids in the polypeptide chain — is primary structure of protein.
c. Inter relation of amino-acids in polypeptide chain is — secondary structure.