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Gas-phase interaction of protonated lysine with water


Rožman, Marko; Srzić, Dunja; Klasinc, Leo
Gas-phase interaction of protonated lysine with water // International journal of mass spectrometry, 253 (2006), 3; 201-206 doi:10.1016/j.ijms.2006.03.001 (međunarodna recenzija, članak, znanstveni)


Naslov
Gas-phase interaction of protonated lysine with water

Autori
Rožman, Marko ; Srzić, Dunja ; Klasinc, Leo

Izvornik
International journal of mass spectrometry (1387-3806) 253 (2006), 3; 201-206

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

Ključne riječi
Gas-phase interaction ; H/D exchange ; reaction mechanism ; DFT ; FTICR MS

Sažetak
Gas-phase interaction of LysH+ with D2O has been investigated in order to elucidate the H/D exchange reaction mechanism and possibility of water assisted ion-zwitterion structure formation. The proceed of the interaction is modeled by DFT calculations. Potential energy profiles for: the perturbation from ion-molecule to ion-zwitterion structure, the “ flip-flop” and the “ bridging” mechanism are presented. Analysis of H/D exchange kinetics results for LysH+ with D2O and CD3OD measured in a FTICR mass spectrometer agree with ion-molecule structure of LysH+. Both experimental and theoretical findings suggest that during interaction of LysH+ with D2O isotopic exchange is favored over the water assisted conformational change from ion-molecule into ion-zwitterion structure.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
0098032

Ustanove
Institut "Ruđer Bošković", Zagreb

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


Uključenost u ostale bibliografske baze podataka:


  • Chemical Abstracts


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