Which of the following descriptions about tertiary structure of protein are correct
A.
All polypeptide chains with tertiary structure have biological activities.
B.
Most hydrophilic groups ( 亲水基团 ) are located on the surface of tertiary structure.
C.
The stability of tertiary structure is maintained by covalent bonds.
D.
T ertiary structure is t hree-dimensional arrangement of all atoms in a polypeptide chain.
E.
Formation of tertiary structure i s the result of interaction between side chain groups of a polypeptide chain.