{"title":"利用核磁共振强度差的标准差分析了未折叠蛋白的残馀结构。","authors":"Fuko Mizuno, Saeko Aoki, Akimasa Matsugami, Fumiaki Hayashi, Chiaki Nishimura","doi":"10.2174/0929866530666230104140830","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Sensitive methods are necessary to identify the residual structure in an unfolded protein, which may be similar to the functionally native structure. Signal intensity in NMR experiments is useful for analyzing the line width for a dynamic structure; however, another contribution is contained.</p><p><strong>Methods: </strong>Here, the signal-intensity difference along the sequence was used for probability to calculate the standard deviation.</p><p><strong>Results: </strong>The relative values of the standard deviations were 0.57, 0.57, and 0.66 for alpha-synuclein wild-type, A53T, and A30P, respectively. This revealed that the flexible region was mainly in the Cterminal region of alpha-synuclein at higher temperatures as observed by the amide-proton exchange studies.</p><p><strong>Conclusion: </strong>In particular, the flexible structure was induced by the A30P mutation.</p>","PeriodicalId":20736,"journal":{"name":"Protein and Peptide Letters","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/92/68/PPL-30-103.PMC10230605.pdf","citationCount":"0","resultStr":"{\"title\":\"The Residual Structure of Unfolded Proteins was Elucidated from the Standard Deviation of NMR Intensity Differences.\",\"authors\":\"Fuko Mizuno, Saeko Aoki, Akimasa Matsugami, Fumiaki Hayashi, Chiaki Nishimura\",\"doi\":\"10.2174/0929866530666230104140830\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Introduction: </strong>Sensitive methods are necessary to identify the residual structure in an unfolded protein, which may be similar to the functionally native structure. Signal intensity in NMR experiments is useful for analyzing the line width for a dynamic structure; however, another contribution is contained.</p><p><strong>Methods: </strong>Here, the signal-intensity difference along the sequence was used for probability to calculate the standard deviation.</p><p><strong>Results: </strong>The relative values of the standard deviations were 0.57, 0.57, and 0.66 for alpha-synuclein wild-type, A53T, and A30P, respectively. This revealed that the flexible region was mainly in the Cterminal region of alpha-synuclein at higher temperatures as observed by the amide-proton exchange studies.</p><p><strong>Conclusion: </strong>In particular, the flexible structure was induced by the A30P mutation.</p>\",\"PeriodicalId\":20736,\"journal\":{\"name\":\"Protein and Peptide Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/92/68/PPL-30-103.PMC10230605.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Protein and Peptide Letters\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.2174/0929866530666230104140830\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Protein and Peptide Letters","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.2174/0929866530666230104140830","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
The Residual Structure of Unfolded Proteins was Elucidated from the Standard Deviation of NMR Intensity Differences.
Introduction: Sensitive methods are necessary to identify the residual structure in an unfolded protein, which may be similar to the functionally native structure. Signal intensity in NMR experiments is useful for analyzing the line width for a dynamic structure; however, another contribution is contained.
Methods: Here, the signal-intensity difference along the sequence was used for probability to calculate the standard deviation.
Results: The relative values of the standard deviations were 0.57, 0.57, and 0.66 for alpha-synuclein wild-type, A53T, and A30P, respectively. This revealed that the flexible region was mainly in the Cterminal region of alpha-synuclein at higher temperatures as observed by the amide-proton exchange studies.
Conclusion: In particular, the flexible structure was induced by the A30P mutation.
期刊介绍：
Protein & Peptide Letters publishes letters, original research papers, mini-reviews and guest edited issues in all important aspects of protein and peptide research, including structural studies, advances in recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, and drug design. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallization and preliminary structure determination of biologically important proteins are considered only if they include significant new approaches or deal with proteins of immediate importance, and preliminary structure determinations of biologically important proteins. Purely theoretical/review papers should provide new insight into the principles of protein/peptide structure and function. Manuscripts describing computational work should include some experimental data to provide confirmation of the results of calculations.
Protein & Peptide Letters focuses on:
Structure Studies
Advances in Recombinant Expression
Drug Design
Chemical Synthesis
Function
Pharmacology
Enzymology
Conformational Analysis
Immunology
Biotechnology
Protein Engineering
Protein Folding
Sequencing
Molecular Recognition
Purification and Analysis
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