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Journal of Magnetic Resonance, Series B最新文献

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3DJ-Resolved HSQC, a Novel Approach to Measuring3JHNα. Application to Paramagnetic Proteins 3d分辨HSQC，一种新的3jhn α测量方法。顺磁性蛋白质的应用
Journal of Magnetic Resonance, Series B Pub Date : 1996-10-01 DOI: 10.1006/jmrb.1996.0160
Geoffrey P. Kelly, Frederick W. Muskett, David Whitford
{"title":"3DJ-Resolved HSQC, a Novel Approach to Measuring3JHNα. Application to Paramagnetic Proteins","authors":"Geoffrey P. Kelly, Frederick W. Muskett, David Whitford","doi":"10.1006/jmrb.1996.0160","DOIUrl":"10.1006/jmrb.1996.0160","url":null,"abstract":"","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"113 1","pages":"Pages 88-90"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0160","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19853145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Interfacial Spin–Spin Coupling in Wood by 2D Time-Domain NMR 二维时域核磁共振研究木材界面自旋-自旋耦合
Journal of Magnetic Resonance, Series B Pub Date : 1996-10-01 DOI: 10.1006/jmrb.1996.0148
D.A. Oleskevich, N. Ghahramany , W.P. Weglarz, H. Peemoeller
{"title":"Interfacial Spin–Spin Coupling in Wood by 2D Time-Domain NMR","authors":"D.A. Oleskevich,&nbsp;N. Ghahramany ,&nbsp;W.P. Weglarz,&nbsp;H. Peemoeller","doi":"10.1006/jmrb.1996.0148","DOIUrl":"10.1006/jmrb.1996.0148","url":null,"abstract":"<div><p>Magnetization exchange between the solid-wood component and water was studied in hydrated aspen wood by 2D NMR time-domain spectroscopy. Analysis of the relaxation results for exchange shows that a three-site system (water and two wood components) is involved and that the water protons are strongly coupled (a wood-to-water exchange rate of 640 s<sup>−1</sup>) to the water-accessible wood protons, which in turn are less strongly coupled (a wood-to-wood exchange rate of 64 s<sup>−1</sup>) to the water-inaccessible wood protons.</p></div>","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"113 1","pages":"Pages 1-8"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73792725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Optimal Sampling Strategies for the Measurement of Spin–Spin Relaxation Times 测量自旋-自旋弛豫时间的最优采样策略
Journal of Magnetic Resonance, Series B Pub Date : 1996-10-01 DOI: 10.1006/jmrb.1996.0151
J.A. Jones , P. Hodgkinson , A.L. Barker , P.J. Hore
{"title":"Optimal Sampling Strategies for the Measurement of Spin–Spin Relaxation Times","authors":"J.A. Jones ,&nbsp;P. Hodgkinson ,&nbsp;A.L. Barker ,&nbsp;P.J. Hore","doi":"10.1006/jmrb.1996.0151","DOIUrl":"10.1006/jmrb.1996.0151","url":null,"abstract":"<div><p>It is shown how Cramér–Rao theory may be used to determine the optimal sampling pattern for measuring the NMR spin–spin relaxation time,<em>T</em><sub>2</sub>. The results may also be applied to the measurement of any other exponential decay, including some pulse sequences for measuring the spin–lattice relaxation time,<em>T</em><sub>1</sub>. The optimal sampling pattern involves placing 22% of the sample points at zero time and the remaining 78% at 1.28<em>T</em><sub>2</sub>, or, more practically and almost as accurately, one point at zero and four at 1.30<em>T</em><sub>2</sub>. These sampling patterns are very different from those commonly used. The Cramér–Rao results are compared with experimental measurements and computer simulations. Some limitations of the method are described, and its extension to the simultaneous measurement of a range of<em>T</em><sub>2</sub>values is addressed.</p></div>","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"113 1","pages":"Pages 25-34"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77368075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 109
A Combined PEDRI and CW-EPR Instrument for Detecting Free Radicalsin Vivo PEDRI和CW-EPR联合检测体内自由基
Journal of Magnetic Resonance, Series B Pub Date : 1996-10-01 DOI: 10.1006/jmrb.1996.0156
S.J. Mccallum, I. Nicholson, D.J. Lurie
{"title":"A Combined PEDRI and CW-EPR Instrument for Detecting Free Radicalsin Vivo","authors":"S.J. Mccallum,&nbsp;I. Nicholson,&nbsp;D.J. Lurie","doi":"10.1006/jmrb.1996.0156","DOIUrl":"10.1006/jmrb.1996.0156","url":null,"abstract":"","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"113 1","pages":"Pages 65-69"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0156","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81755520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Determination of1J,2J, and3JCarbon–Carbon Coupling Constants at Natural Abundance 天然丰度中1j、2J和3j碳-碳耦合常数的测定
Journal of Magnetic Resonance, Series B Pub Date : 1996-09-01 DOI: 10.1006/jmrb.1996.0145
Bernd Reif, Matthias Köck, Rainer Kerssebaum , Jürgen Schleucher , Christian Griesinger
{"title":"Determination of1J,2J, and3JCarbon–Carbon Coupling Constants at Natural Abundance","authors":"Bernd Reif,&nbsp;Matthias Köck,&nbsp;Rainer Kerssebaum ,&nbsp;Jürgen Schleucher ,&nbsp;Christian Griesinger","doi":"10.1006/jmrb.1996.0145","DOIUrl":"10.1006/jmrb.1996.0145","url":null,"abstract":"","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"112 3","pages":"Pages 295-301"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0145","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19781604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 53
Distinguishing Inter- and Intrastrand NOEs Involving Exchangeable Protons in RNA Duplexes 区分涉及RNA双链中可交换质子的链间和链内NOEs
Journal of Magnetic Resonance, Series B Pub Date : 1996-09-01 DOI: 10.1006/jmrb.1996.0142
C. Sich, J. Flemming, R. Ramachandran, L.R. Brown
{"title":"Distinguishing Inter- and Intrastrand NOEs Involving Exchangeable Protons in RNA Duplexes","authors":"C. Sich,&nbsp;J. Flemming,&nbsp;R. Ramachandran,&nbsp;L.R. Brown","doi":"10.1006/jmrb.1996.0142","DOIUrl":"10.1006/jmrb.1996.0142","url":null,"abstract":"","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"112 3","pages":"Pages 275-281"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0142","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19887340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Novel Pulse Sequences for the Resonance Assignment of Aromatic Side Chains in13C-Labeled Proteins 13c标记蛋白芳香侧链共振配位的新型脉冲序列
Journal of Magnetic Resonance, Series B Pub Date : 1996-09-01 DOI: 10.1006/jmrb.1996.0140
Frank Löhr, Heinz Rüterjans
{"title":"Novel Pulse Sequences for the Resonance Assignment of Aromatic Side Chains in13C-Labeled Proteins","authors":"Frank Löhr,&nbsp;Heinz Rüterjans","doi":"10.1006/jmrb.1996.0140","DOIUrl":"10.1006/jmrb.1996.0140","url":null,"abstract":"","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"112 3","pages":"Pages 259-268"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0140","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19781600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
A QuantitativeJ-Correlation Experiment for the Accurate Measurement of One-Bond Amide15N–1H Couplings in Proteins 精确测量蛋白质中单键酰胺15n - 1h偶联的定量j相关实验
Journal of Magnetic Resonance, Series B Pub Date : 1996-09-01 DOI: 10.1006/jmrb.1996.0138
J.R. Tolman, J.H. Prestegard
{"title":"A QuantitativeJ-Correlation Experiment for the Accurate Measurement of One-Bond Amide15N–1H Couplings in Proteins","authors":"J.R. Tolman,&nbsp;J.H. Prestegard","doi":"10.1006/jmrb.1996.0138","DOIUrl":"10.1006/jmrb.1996.0138","url":null,"abstract":"<div><p>Very precise measurements of<sup>1</sup><em>J</em><sub>NH</sub>couplings have been made for approximately 40% of the amide sites in cyanometmyoglobin using two different experimental approaches. The first approach is a previously described frequency-based method in which the couplings are observed as splittings in the frequency-domain spectrum. The second is a new approach, along the lines of quantitative<em>J</em>-correlation spectroscopy, in which the coupling is encoded in the resonance intensity. Measurements obtained from the two experimental techniques are in agreement to a high degree of precision (s.d. of 0.17 Hz) and residual deviations appear to be largely random. The new method offers substantial time savings when resonances are widely dispersed in the frequency domain and may offer improved precision in these instances.</p></div>","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"112 3","pages":"Pages 245-252"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0138","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19887338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 49
Homonuclear 1D and 2D NMR Experiments for the Observation of Solvent–Solute Interactions 观察溶剂-溶质相互作用的同核一维和二维核磁共振实验
Journal of Magnetic Resonance, Series B Pub Date : 1996-09-01 DOI: 10.1006/jmrb.1996.0143
Claudio Dalvit
{"title":"Homonuclear 1D and 2D NMR Experiments for the Observation of Solvent–Solute Interactions","authors":"Claudio Dalvit","doi":"10.1006/jmrb.1996.0143","DOIUrl":"10.1006/jmrb.1996.0143","url":null,"abstract":"","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"112 3","pages":"Pages 282-288"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0143","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19781602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 36
Navigated Single-Voxel Short-Echo-Time Proton Spectroscopy of Moving Objects 运动物体的导航单体素短回波时间质子光谱
Journal of Magnetic Resonance, Series B Pub Date : 1996-09-01 DOI: 10.1006/jmrb.1996.0146
J.Michael Tyszka, Jeffrey M. Silverman
{"title":"Navigated Single-Voxel Short-Echo-Time Proton Spectroscopy of Moving Objects","authors":"J.Michael Tyszka,&nbsp;Jeffrey M. Silverman","doi":"10.1006/jmrb.1996.0146","DOIUrl":"10.1006/jmrb.1996.0146","url":null,"abstract":"","PeriodicalId":16130,"journal":{"name":"Journal of Magnetic Resonance, Series B","volume":"112 3","pages":"Pages 302-306"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1006/jmrb.1996.0146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19781605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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