Enzyme Engineering
In recent years, the term "enzyme engineering" is used to denote the modification of enzyme structure by alteration of genes which code enzymes. An enzyme produced by a modified gene is structurally new which has great promise to create a new enzyme. Enzyme engineering embraces the (i) production of new enzymes, (ii) study of structural feature related to stability (iii) increase in stability by changing amino acid composition, and (iv) production of stable enzymes by genetically engineered microbial cells.