2022
Convergent views on disordered protein dynamics from NMR and computational approaches
SALVI, Nicola, Vojtěch ZAPLETAL, Zuzana JASEŇÁKOVÁ, Milan ZACHRDLA, Petr PADRTA et. al.Základní údaje
Originální název
Convergent views on disordered protein dynamics from NMR and computational approaches
Autoři
SALVI, Nicola, Vojtěch ZAPLETAL (203 Česká republika, domácí), Zuzana JASEŇÁKOVÁ (703 Slovensko, domácí), Milan ZACHRDLA, Petr PADRTA (203 Česká republika, domácí), Subhash NARASIMHAN (356 Indie, domácí), Thorsten MARQUARDSEN, Jean-Max TYBURN, Lukáš ŽÍDEK (203 Česká republika, domácí), Martin BLACKLEDGE, Fabien FERRAGE a Pavel KADEŘÁVEK (203 Česká republika, garant, domácí)
Vydání
BIOPHYSICAL JOURNAL, UNITED STATES, CELL PRESS, 2022, 0006-3495
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.400
Kód RIV
RIV/00216224:14740/22:00126947
Organizační jednotka
Středoevropský technologický institut
UT WoS
000928435100005
Klíčová slova anglicky
NMR; protein dynamics
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 30. 10. 2024 14:19, Ing. Martina Blahová
Anotace
V originále
Intrinsically disordered proteins (IDPs) or intrinsically disordered regions (IDRs) is a class of biologically important proteins exhibiting specific biophysical characteristics. They lack a hydrophobic core, and their conformational behavior is strongly influenced by electrostatic interactions. IDPs and IDRs are highly dynamic, and a characterization of the motions of IDPs and IDRs is essential for their physically correct description. NMR together with molecular dynamics simulations are the methods best suited to such a task because they provide information about dynamics of proteins with atomistic resolution. Here, we present a study of motions of a disordered C-terminal domain of the delta subunit of RNA polymerase from Bacillus subtilis. Positively and negatively charged residues in the studied domain form transient electrostatic contacts critical for the biological function. Our study is focused on investigation of ps-ns dynamics of backbone of the delta subunit based on analysis of amide 15N NMR relaxation data and molecular dynamics simulations. In order to extend an informational content of NMR data to lower frequencies, which are more sensitive to slower motions, we combined standard (high-field) NMR relaxation experiments with high-resolution relaxometry. Altogether, we collected data reporting the relaxation at 12 different magnetic fields, resulting in an unprecedented data set. Our results document that the analysis of such data provides a consistent description of dynamics and confirms the validity of so far used protocols of the analysis of dynamics of IDPs also for a partially folded protein. In addition, the potential to access detailed description of motions at the timescale of tens of ns with the help of relaxometry data is discussed. Interestingly, in our case, it appears to be mostly relevant for a region involved in the formation of temporary contacts within the disordered region, which was previously proven to be biologically important.
Návaznosti
EF18_070/0009846, projekt VaV |
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GJ18-04197Y, projekt VaV |
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90127, velká výzkumná infrastruktura |
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