Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 977912

The maximum entropy production requirement for proton transfers enhances catalytic efficiency for β-lactamases


Juretić, Davor; Bonačić Lošić, Željana; Kuić, Domagoj; Simunić, Juraj; Dobovišek, Andrej
The maximum entropy production requirement for proton transfers enhances catalytic efficiency for β-lactamases // Biophysical chemistry, 244 (2019), 11-21 doi:10.1016/j.bpc.2018.10.004 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 977912 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
The maximum entropy production requirement for proton transfers enhances catalytic efficiency for β-lactamases

Autori
Juretić, Davor ; Bonačić Lošić, Željana ; Kuić, Domagoj ; Simunić, Juraj ; Dobovišek, Andrej

Izvornik
Biophysical chemistry (0301-4622) 244 (2019); 11-21

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

Ključne riječi
β-lactamases ; Entropy production ; Catalytic efficiency ; Optimal rate constants ; Enzyme evolution ; Proton transfer steps

Sažetak
Movement of charges during enzyme catalytic cycle may be due to conformational changes, or to fast electron or proton transfer, or to both events. In each case, entropy production can be calculated using Terrel L. Hill's method, if relevant microscopic rate constants are known. When ranked by their evolutionary distance from putative common ancestor, three β-lactamases considered in this study show correspondingly increased catalytic constant, catalytic efficiency, and overall entropy production. The acylation and deacylation steps with concomitant proton shuttles are the most important contributors to overall entropy production. The maximal entropy production requirement for the ES↔EP or EP↔E + P step leads to optimal rate constants, performance parameters, and entropy production values, which are close to those extracted from experiments and also rank in accordance with evolutionary distances. Concurrent maximization of entropy productions for both proton transfer steps revealed that evolvability potential of different β-lactamases is similarly high. These results may have implications in particular for latent potential of β-lactamases to evolve further and in general for selection of optimized enzymes through natural or directed evolution.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Biologija



POVEZANOST RADA


Ustanove
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Split,
Mediteranski institut za istraživanje života

Citiraj ovu publikaciju

Juretić, Davor; Bonačić Lošić, Željana; Kuić, Domagoj; Simunić, Juraj; Dobovišek, Andrej
The maximum entropy production requirement for proton transfers enhances catalytic efficiency for β-lactamases // Biophysical chemistry, 244 (2019), 11-21 doi:10.1016/j.bpc.2018.10.004 (međunarodna recenzija, članak, znanstveni)
Juretić, D., Bonačić Lošić, Ž., Kuić, D., Simunić, J. & Dobovišek, A. (2019) The maximum entropy production requirement for proton transfers enhances catalytic efficiency for β-lactamases. Biophysical chemistry, 244, 11-21 doi:10.1016/j.bpc.2018.10.004.
@article{article, year = {2019}, pages = {11-21}, DOI = {10.1016/j.bpc.2018.10.004}, keywords = {β-lactamases, Entropy production, Catalytic efficiency, Optimal rate constants, Enzyme evolution, Proton transfer steps}, journal = {Biophysical chemistry}, doi = {10.1016/j.bpc.2018.10.004}, volume = {244}, issn = {0301-4622}, title = {The maximum entropy production requirement for proton transfers enhances catalytic efficiency for β-lactamases}, keyword = {β-lactamases, Entropy production, Catalytic efficiency, Optimal rate constants, Enzyme evolution, Proton transfer steps} }

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


Citati





    Contrast
    Increase Font
    Decrease Font
    Dyslexic Font