Synthesis, redox properties, and conformational analysis of vicinal disulfide ring mimics
摘要:
A vicinal disulfide ring (VDR) results from disulfide-bond formation between two adjacent cysteine residues. This eight-membered ring is a rare motif in protein structures and is functionally important to those few proteins that posses it. This article focuses on the construction of strained and unstrained VDR mimics, discernment of the preferred conformation of these mimics, and the determination of their respective disulfide redox potentials. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis, redox properties, and conformational analysis of vicinal disulfide ring mimics
摘要:
A vicinal disulfide ring (VDR) results from disulfide-bond formation between two adjacent cysteine residues. This eight-membered ring is a rare motif in protein structures and is functionally important to those few proteins that posses it. This article focuses on the construction of strained and unstrained VDR mimics, discernment of the preferred conformation of these mimics, and the determination of their respective disulfide redox potentials. (C) 2008 Elsevier Ltd. All rights reserved.
Conformational analysis of oxidized peptide fragments of the C-terminal redox center in thioredoxin reductases by NMR spectroscopy
作者:Erik L. Ruggles、P. Bruce Deker、Robert J. Hondal
DOI:10.1002/psc.2620
日期:2014.5
1H‐NMR and two‐dimensional (2D) NMR techniques for determining the amide bond conformeric ratio. The presence of selenium in a VSeSR also lowers the dihedral strain energy (DSE) of the selenosulfide bond relative to the disulfide bond of VDRs. While cis amide geometry decreases strain on the amide bond, it increases strain on the scissile disulfide bond of the VDR found in thioredoxinreductase from
Synthesis, redox properties, and conformational analysis of vicinal disulfide ring mimics
作者:Erik L. Ruggles、P. Bruce Deker、Robert J. Hondal
DOI:10.1016/j.tet.2008.11.085
日期:2009.2
A vicinal disulfide ring (VDR) results from disulfide-bond formation between two adjacent cysteine residues. This eight-membered ring is a rare motif in protein structures and is functionally important to those few proteins that posses it. This article focuses on the construction of strained and unstrained VDR mimics, discernment of the preferred conformation of these mimics, and the determination of their respective disulfide redox potentials. (C) 2008 Elsevier Ltd. All rights reserved.