期刊
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEIN STRUCTURE AND MOLECULAR ENZYMOLOGY
卷 1543, 期 2, 页码 203-222出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-4838(00)00235-1
关键词
folding; stability; site-directed mutagenesis; design; directed evolution
资金
- NIGMS NIH HHS [GM42560] Funding Source: Medline
The serine protease subtilisin is an important industrial enzyme as well as a model for understanding the enormous rate enhancements affected by enzymes. For these reasons along with the timely cloning of the gene, ease of expression and purification and availability of atomic resolution structures, subtilisin became a model system for protein engineering studies in the 1980s. Fifteen years later, mutations in well over 50% of the 275 amino acids of subtilisin have been reported in the scientific literature. Most subtilisin engineering has involved catalytic amino acids, substrate binding regions and stabilizing mutations. Stability has been the property of subtilisin which has been most amenable to enhancement, yet perhaps least understood. This review will give a brief overview of the subtilisin engineering field, critically review what has been learned about subtilisin stability from protein engineering experiments and conclude with some speculation about the prospects for future subtilisin engineering. (C) 2000 Elsevier Science B.V. All rights reserved.
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