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Báo cáo khoa học: Local stability identification and the role of key acidic amino acid residues in staphylococcal nuclease unfolding

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:8

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Staphylococcalnuclease is a single domain protein with 149 amino acids. It has no disulfide bonds, which makes it a simple model for the study of pro-tein folding. In this study, 20 mutants of this protein were generated each with a single base substitution of glycine for negatively charged glutamic acid or aspartic acid. Using differential scanning microcalorimetry in ther-mal denaturation experiments, we identified two mutants, E75G and E129G, having approximately 43% and 44%, respectively, lowerDHcal values than the wild-type protein....

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Nội dung Text: Báo cáo khoa học: Local stability identification and the role of key acidic amino acid residues in staphylococcal nuclease unfolding

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