Double quantum two-dimensional Fourier transform electron spin resonance: Distance measurements
Double quantum two-dimensional Fourier transform electron spin resonance: Distance measurements
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DOI：
10.1016/0009-2614(96)00075-9
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发表时间：
1996-03-15
影响因子：
2.8
通讯作者：
Freed, JH
中科院分区：
文献类型：
--
作者：
Saxena, S;Freed, JH
报道了首次双量子二维傅里叶变换电子自旋共振实验。将2D-FT ESR扩展到能够检测δ M(s) = +/-2跃迁，增强了ESR研究结构性质（即双标记分子的距离）的能力。发现一个聚脯氨酸肽的距离为21埃，自旋在两端标记，与早期使用荧光能量转移的测量一致。
The first double quantum two-dimensional Fourier transform electron spin resonance (2D-FT ESR) experiments are reported. Extension of 2D-FT ESR to enable detection of the Delta M(s) = +/-2 transition enhances the capability of ESR in studying structural properties (i.e. distances in bilabeled molecules). A distance of 21 Angstrom was found for a poly-proline peptide, spin labeled at both ends, in agreement with earlier measurements using fluorescence energy transfer.