標題: | Protein plasticity: A single amino acid substitution in the Saccharomyces cerevisiae oxidosqualene-lanosterol cyclase generates protosta-13(17),24-dien-3 beta-ol, a rearrangement product |
作者: | Wu, Tung-Kung Wen, Hao-Yu Chang, Cheng-Hsiang Liu, Yuan-Ting 應用化學系 應用化學系分子科學碩博班 Department of Applied Chemistry Institute of Molecular science |
公開日期: | 19-Jun-2008 |
摘要: | To provide insights into the structure-function relationships of oxidosqualene-lanosterol cyclase (ERG7) from Saccharomyces cerevisiae, the Phe699 was exchanged against hydrophilic polar uncharged residues Ser, Thr, Cys, Gin, and Tyr to characterize its product profile and functional role in ERG7 activity. Among the substitutions, only the ERG7(F699T) mutant produced novel protosta-13(17),24-dien-3 beta-ol as the sole truncated rearrangement product. The results suggest that Phe699Thr mutation is likely to affect the C-17 cation stabilization during the rearrangement process. |
URI: | http://dx.doi.org/10.1021/ol800799n http://hdl.handle.net/11536/8711 |
ISSN: | 1523-7060 |
DOI: | 10.1021/ol800799n |
期刊: | ORGANIC LETTERS |
Volume: | 10 |
Issue: | 12 |
起始頁: | 2529 |
結束頁: | 2532 |
Appears in Collections: | Articles |
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