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[NMR paper] Fluorine NMR study of proline-rich sequences using fluoroprolines
Oct 31, 2023 - 10:49 AM - by nmrlearner
nmrlearner's Avatar Fluorine NMR study of proline-rich sequences using fluoroprolines

Proline homopolymer motifs are found in many proteins; their peculiar conformational and dynamic properties are often directly involved in those proteins' functions. However, the dynamics of proline homopolymers is hard to study by NMR due to a lack of amide protons and small chemical shift dispersion. Exploiting the spectroscopic properties of fluorinated prolines opens interesting perspectives to address these issues. Fluorinated prolines are already widely used in protein structure...

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0 Replies | 140 Views
[NMR paper] Correction of field instabilities in biomolecular solid-state NMR by simultaneous acquisition of a frequency reference
Oct 31, 2023 - 10:49 AM - by nmrlearner
nmrlearner's Avatar Correction of field instabilities in biomolecular solid-state NMR by simultaneous acquisition of a frequency reference

With the advent of faster magic-angle spinning (MAS) and higher magnetic fields, the resolution of biomolecular solid-state nuclear magnetic resonance (NMR) spectra has been continuously increasing. As a direct consequence, the always narrower spectral lines, especially in proton-detected spectroscopy, are also becoming more sensitive to temporal instabilities of the magnetic field in the sample volume. Field drifts in the order of tenths of parts per million occur after probe insertion or...

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0 Replies | 106 Views
[NMR paper] Paramagpy: software for fitting magnetic susceptibility tensors using paramagnetic effects measured in NMR spectra
Oct 31, 2023 - 10:49 AM - by nmrlearner
nmrlearner's Avatar Paramagpy: software for fitting magnetic susceptibility tensors using paramagnetic effects measured in NMR spectra

Paramagnetic metal ions with fast-relaxing electrons generate pseudocontact shifts (PCSs), residual dipolar couplings (RDCs), paramagnetic relaxation enhancements (PREs) and cross-correlated relaxation (CCR) in the nuclear magnetic resonance (NMR) spectra of the molecules they bind to. These effects offer long-range structural information in molecules equipped with binding sites for such metal ions. Here we present the new open-source software Paramagpy, which has been written in Python 3 with a...

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0 Replies | 101 Views
[NMR paper] Facilitating the structural characterisation of non-canonical amino acids in biomolecular NMR
Oct 31, 2023 - 10:49 AM - by nmrlearner
nmrlearner's Avatar Facilitating the structural characterisation of non-canonical amino acids in biomolecular NMR

Peptides and proteins containing non-canonical amino acids (ncAAs) are a large and important class of biopolymers. They include non-ribosomally synthesised peptides, post-translationally modified proteins, expressed or synthesised proteins containing unnatural amino acids, and peptides and proteins that are chemically modified. Here, we describe a general procedure for generating atomic descriptions required to incorporate ncAAs within popular NMR structure determination software such as CYANA,...

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0 Replies | 107 Views
[NMR paper] Exclusively heteronuclear NMR experiments for the investigation of intrinsically disordered proteins: focusing on proline residues
Oct 31, 2023 - 10:49 AM - by nmrlearner
nmrlearner's Avatar Exclusively heteronuclear NMR experiments for the investigation of intrinsically disordered proteins: focusing on proline residues

NMR represents a key spectroscopic technique that contributes to the emerging field of highly flexible, intrinsically disordered proteins (IDPs) or protein regions (IDRs) that lack a stable three-dimensional structure. A set of exclusively heteronuclear NMR experiments tailored for proline residues, highly abundant in IDPs/IDRs, are presented here. They provide a valuable complement to the widely used approach based on amide proton detection, filling the gap introduced by the lack of amide...

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0 Replies | 149 Views
Unlocking the Hidden Structural Secrets of a Critical Cancer Protein - India Education Diary
Oct 30, 2023 - 3:05 AM - by nmrlearner
nmrlearner's Avatar Unlocking the Hidden Structural Secrets of a Critical Cancer Protein - India Education Diary

Unlocking the Hidden Structural Secrets of a Critical Cancer Protein India Education Diary Read here
0 Replies | 178 Views
Reversible switching between two common protein folds in a ... - pnas.org
Oct 28, 2023 - 11:20 PM - by nmrlearner
nmrlearner's Avatar Reversible switching between two common protein folds in a ... - pnas.org

Reversible switching between two common protein folds in a ... pnas.org Read here
0 Replies | 187 Views
Lepší pochopení lidského proteinu RECQ4, který je d?ležitý pro ... - Sciencemag.cz
Oct 28, 2023 - 7:50 AM - by nmrlearner
nmrlearner's Avatar Lepší pochopení lidského proteinu RECQ4, který je d?ležitý pro ... - Sciencemag.cz

Lepší pochopení lidského proteinu RECQ4, který je d?ležitý pro ... Sciencemag.cz Read here
0 Replies | 174 Views
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