Triple resonance NMR relaxation experiments for studies of intrinsically disordered proteins
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F17%3A00095497" target="_blank" >RIV/00216224:14740/17:00095497 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1007/s10858-017-0138-1" target="_blank" >http://dx.doi.org/10.1007/s10858-017-0138-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10858-017-0138-1" target="_blank" >10.1007/s10858-017-0138-1</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Triple resonance NMR relaxation experiments for studies of intrinsically disordered proteins
Popis výsledku v původním jazyce
Description of protein dynamics is known to be essential in understanding their function. Studies based on a well established NMR relaxation methodology have been applied to a large number of systems. However, the low dispersion of chemical shifts very often observed within intrinsically disordered proteins complicates utilization of standard 2D HN correlated spectra because a limited number of amino acids can be characterized. Here we present a suite of triple resonance HNCO-type NMR experiments for measurements of five relaxation parameters (, , NOE, cross-correlated relaxation rates and ) in doubly ,-labeled proteins. We show that the third spectral dimension combined with non-uniform sampling provides relaxation rates for almost all residues of a protein with extremely poor chemical shift dispersion, the C terminal domain of -subunit of RNA polymerase from Bacillus subtilis. Comparison with data obtained using a sample labeled by only showed that the presence of has a negligible effect on , , and on the cross-relaxation rate (calculated from NOE and ), and that these relaxation rates can be used to calculate accurate spectral density values. Partially -labeled sample was used to test if the observed increase of in the presence of corresponds to the dipole-dipole interactions in the ,-labeled sample.
Název v anglickém jazyce
Triple resonance NMR relaxation experiments for studies of intrinsically disordered proteins
Popis výsledku anglicky
Description of protein dynamics is known to be essential in understanding their function. Studies based on a well established NMR relaxation methodology have been applied to a large number of systems. However, the low dispersion of chemical shifts very often observed within intrinsically disordered proteins complicates utilization of standard 2D HN correlated spectra because a limited number of amino acids can be characterized. Here we present a suite of triple resonance HNCO-type NMR experiments for measurements of five relaxation parameters (, , NOE, cross-correlated relaxation rates and ) in doubly ,-labeled proteins. We show that the third spectral dimension combined with non-uniform sampling provides relaxation rates for almost all residues of a protein with extremely poor chemical shift dispersion, the C terminal domain of -subunit of RNA polymerase from Bacillus subtilis. Comparison with data obtained using a sample labeled by only showed that the presence of has a negligible effect on , , and on the cross-relaxation rate (calculated from NOE and ), and that these relaxation rates can be used to calculate accurate spectral density values. Partially -labeled sample was used to test if the observed increase of in the presence of corresponds to the dipole-dipole interactions in the ,-labeled sample.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10608 - Biochemistry and molecular biology
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Biomolecular NMR
ISSN
0925-2738
e-ISSN
—
Svazek periodika
69
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
14
Strana od-do
133-146
Kód UT WoS článku
000416856600003
EID výsledku v databázi Scopus
—