Synthesis and conformational analysis of di-13C-labeled farnesyl diphosphate analogs
摘要:
Two di-C-13-labeled farnesyl diphosphates (2 and 4) have been prepared using modified versions of the isoprenoid triflate route previously developed in this laboratory. The (3)J(CC) coupling constants far the precursor alcohols 1 and 3 are 1.6 Hz and 3.6 Hz, respectively, in CDCl3, and very similar results were obtained for 2 and 4 in D2O. This indicates a skew or gauche conformation about the C-3-C-4 bond and a trans conformation about the C-4-C-5 bond in both farnesol and FPP. (C) 1998 Elsevier Science Ltd. All rights reserved.
Synthesis and conformational analysis of di-13C-labeled farnesyl diphosphate analogs
作者:Todd J. Zahn、Mohamad B. Ksebati、Richard A. Gibbs
DOI:10.1016/s0040-4039(98)00751-5
日期:1998.6
Two di-C-13-labeled farnesyl diphosphates (2 and 4) have been prepared using modified versions of the isoprenoid triflate route previously developed in this laboratory. The (3)J(CC) coupling constants far the precursor alcohols 1 and 3 are 1.6 Hz and 3.6 Hz, respectively, in CDCl3, and very similar results were obtained for 2 and 4 in D2O. This indicates a skew or gauche conformation about the C-3-C-4 bond and a trans conformation about the C-4-C-5 bond in both farnesol and FPP. (C) 1998 Elsevier Science Ltd. All rights reserved.
Evaluation of Isoprenoid Conformation in Solution and in the Active Site of Protein-Farnesyl Transferase Using Carbon-13 Labeling in Conjunction with Solution- and Solid-State NMR
作者:Todd J. Zahn、Markus Eilers、Zhengmao Guo、Mohamad B. Ksebati、Matthew Simon、Jeffrey D. Scholten、Steven O. Smith、Richard A. Gibbs
DOI:10.1021/ja000860f
日期:2000.8.1
knowledge of the solutionconformation of FPP, as well as its conformation in the active site of FTase. Four bis-13C-labeled derivatives of farnesol and geranylgeraniol have been synthesized and used to prepare the corresponding FPP and GGPP derivatives. The labeled farnesyl and geranylgeranyl derivatives 2−7 were utilized in conjunction with solution 13C NMR to probe the conformation of the prenyl chain