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Pregled bibliografske jedinice broj: 1243527

Structural Dynamics of the Bacillus subtilis MntR Transcription Factor Is Locked by Mn2+ Binding


Jelić Matošević, Zoe; Radman, Katarina; Loubser, Jolene; Crnolatac, Ivo; Piantanida, Ivo; Cukrowski, Ignacy; Leščić Ašler, Ivana; Bertoša, Branimir
Structural Dynamics of the Bacillus subtilis MntR Transcription Factor Is Locked by Mn2+ Binding // International Journal of Molecular Sciences, 24 (2023), 2; 957, 21 doi:10.3390/ijms24020957 (međunarodna recenzija, članak, znanstveni)


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Naslov
Structural Dynamics of the Bacillus subtilis MntR Transcription Factor Is Locked by Mn2+ Binding

Autori
Jelić Matošević, Zoe ; Radman, Katarina ; Loubser, Jolene ; Crnolatac, Ivo ; Piantanida, Ivo ; Cukrowski, Ignacy ; Leščić Ašler, Ivana ; Bertoša, Branimir

Izvornik
International Journal of Molecular Sciences (1422-0067) 24 (2023), 2; 957, 21

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Bacillus subtilis ; MntR ; Molecular dynamics ; Mn

Sažetak
Manganese (II) ions are essential for a variety of bacterial cellular processes. The transcription factor MntR is a metallosensor that regulates Mn2+ ion homeostasis in the bacterium Bacillus subtilis. Its DNA-binding affinity is increased by Mn2+ ion binding, allowing it to act as a transcriptional repressor of manganese import systems. Although experimentally well-researched, the molecular mechanism that regulates this process is still a puzzle. Computational simulations supported by circular dichroism (CD), differential scanning calorimetry (DSC) and native gel electrophoresis (native-PAGE) experiments were employed to study MntR structural and dynamical properties in the presence and absence of Mn2+ ions. The results of molecular dynamics (MD) simulations revealed that Mn2+ ion binding reduces the structural dynamics of the MntR protein and shifts the dynamic equilibrium towards the conformations adequate for DNA binding. Results of CD and DSC measurements support the computational results showing the change in helical content and stability of the MntR protein upon Mn2+ ion binding. Further, MD simulations show that Mn2+ binding induces polarization of the protein electrostatic potential, increasing the positive electrostatic potential of the DNA-binding helices in particular. In order to provide a deeper understanding of the changes in protein structure and dynamics due to Mn2+ binding, a mutant in which Mn2+ binding is mimicked by a cysteine bridge was constructed and also studied computationally and experimentally.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija, Interdisciplinarne prirodne znanosti



POVEZANOST RADA


Projekti:
HRZZ-IP-2020-02-3446 - Manganovi metalosenzori (MaMes) (Bertoša, Branimir, HRZZ - 2020-02) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Poveznice na cjeloviti tekst rada:

doi doi.org www.mdpi.com fulir.irb.hr

Citiraj ovu publikaciju:

Jelić Matošević, Zoe; Radman, Katarina; Loubser, Jolene; Crnolatac, Ivo; Piantanida, Ivo; Cukrowski, Ignacy; Leščić Ašler, Ivana; Bertoša, Branimir
Structural Dynamics of the Bacillus subtilis MntR Transcription Factor Is Locked by Mn2+ Binding // International Journal of Molecular Sciences, 24 (2023), 2; 957, 21 doi:10.3390/ijms24020957 (međunarodna recenzija, članak, znanstveni)
Jelić Matošević, Z., Radman, K., Loubser, J., Crnolatac, I., Piantanida, I., Cukrowski, I., Leščić Ašler, I. & Bertoša, B. (2023) Structural Dynamics of the Bacillus subtilis MntR Transcription Factor Is Locked by Mn2+ Binding. International Journal of Molecular Sciences, 24 (2), 957, 21 doi:10.3390/ijms24020957.
@article{article, author = {Jeli\'{c} Mato\v{s}evi\'{c}, Zoe and Radman, Katarina and Loubser, Jolene and Crnolatac, Ivo and Piantanida, Ivo and Cukrowski, Ignacy and Le\v{s}\v{c}i\'{c} A\v{s}ler, Ivana and Berto\v{s}a, Branimir}, year = {2023}, pages = {21}, DOI = {10.3390/ijms24020957}, chapter = {957}, keywords = {Bacillus subtilis, MntR, Molecular dynamics, Mn}, journal = {International Journal of Molecular Sciences}, doi = {10.3390/ijms24020957}, volume = {24}, number = {2}, issn = {1422-0067}, title = {Structural Dynamics of the Bacillus subtilis MntR Transcription Factor Is Locked by Mn2+ Binding}, keyword = {Bacillus subtilis, MntR, Molecular dynamics, Mn}, chapternumber = {957} }
@article{article, author = {Jeli\'{c} Mato\v{s}evi\'{c}, Zoe and Radman, Katarina and Loubser, Jolene and Crnolatac, Ivo and Piantanida, Ivo and Cukrowski, Ignacy and Le\v{s}\v{c}i\'{c} A\v{s}ler, Ivana and Berto\v{s}a, Branimir}, year = {2023}, pages = {21}, DOI = {10.3390/ijms24020957}, chapter = {957}, keywords = {Bacillus subtilis, MntR, Molecular dynamics, Mn}, journal = {International Journal of Molecular Sciences}, doi = {10.3390/ijms24020957}, volume = {24}, number = {2}, issn = {1422-0067}, title = {Structural Dynamics of the Bacillus subtilis MntR Transcription Factor Is Locked by Mn2+ Binding}, keyword = {Bacillus subtilis, MntR, Molecular dynamics, Mn}, chapternumber = {957} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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