ArticlePhysical chemistry chemical physics : PCCP2022
Dipolar pathways in dipolar EPR spectroscopy.
Article in Physical chemistry chemical physics : PCCP, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Nitroxide spin, non-canonical amino acids and SDSL-EPR spectroscopy: a winning combination for protein dynamics studies.European biophysics journal : EBJ · 2026Article
- Shared structural mechanisms of alternating access between the secondary peptide transporter SbmA and ABC transporters.Nature communications · 2026Article
- Protein Modeling with DEER Spectroscopy.Annual review of biophysics · 2025Review
- Bayesian Probabilistic Inference of Nonparametric Distance Distributions in DEER Spectroscopy.The journal of physical chemistry. A · 2024Article
- Intermolecular contributions, filtration effects and signal composition of SIFTER (single-frequency technique for refocusing).Magnetic resonance (Gottingen, Germany) · 2023Article
- Ibuprofen in a Lipid Bilayer: Nanoscale Spatial Arrangement.Membranes · 2022Article
- Dipolar pathways in multi-spin and multi-dimensional dipolar EPR spectroscopy.Physical chemistry chemical physics : PCCP · 2022Article
- Synthesis of Spin-Labeled Ibuprofen and Its Interaction with Lipid Membranes.Molecules (Basel, Switzerland) · 2022Article
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Authors and funding
4 authors.
Funding
Abstract
Dipolar electron paramagnetic resonance (EPR) experiments such as double electron-electron resonance (DEER) measure distributions of nanometer-scale distances between unpaired electrons, which provide valuable information for structural characterization of proteins and other macromolecular systems. To determine these distributions from the experimental signal, it is critical to employ an accurate model of the signal. For dilute samples of doubly spin-labeled molecules, the signal is a product of an intramolecular and an intermolecular contribution. We present a general model based on dipolar pathways valid for dipolar EPR experiments with spin-1/2 labels. Our results show that the intramolecular contribution consists of a sum and the intermolecular contribution consists of a product over individual dipolar pathway contributions. We examine several commonly used dipolar EPR experiments in terms of dipolar pathways and show experimental results confirming the theoretical predictions. This multi-pathway model makes it possible to analyze a wide range of dipolar EPR experiments within a single theoretical framework.
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