金属离子置换修饰 (metal ion replacement modification)

大分子结合修饰 (macromolecules combine modification)

侧链基团修饰 (side-chain group modification)

肽链有限水解修饰 (peptide chain limited hydrolysis modification)

氨基酸置换修饰(amino acid replacement modification)

物理修饰(physical modification)