Artikel ; Online: Temperature-Induced Effects on the Structure of Gramicidin S.
The journal of physical chemistry. B
2023 Band 127, Heft 17, Seite(n) 3774–3786
Abstract: We report on the structure of Gramicidin S (GS) in a model membrane mimetic environment represented ...
Abstract | We report on the structure of Gramicidin S (GS) in a model membrane mimetic environment represented by the amphipathic solvent 1-octanol using one-dimensional (1D) and two-dimensional (2D) IR spectroscopy. To explore potential structural changes of GS, we also performed a series of spectroscopic measurements at differing temperatures. By analyzing the amide I band and using 2D-IR spectral changes, results could be associated to the disruption of aggregates/oligomers, as well as structural and conformational changes happening in the concentrated solution of GS. The ability of 2D-IR to enable differentiation in melting transitions of oligomerized GS structures is attributed to the sensitivity of the technique to vibrational coupling. Two melting transition temperatures were identified; at |
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Mesh-Begriff(e) | Gramicidin/chemistry ; Temperature ; Molecular Dynamics Simulation ; Protein Conformation, beta-Strand ; Solvents |
Chemische Substanzen | Gramicidin (1405-97-6) ; Solvents |
Sprache | Englisch |
Erscheinungsdatum | 2023-04-26 |
Erscheinungsland | United States |
Dokumenttyp | Journal Article ; Research Support, Non-U.S. Gov't |
ISSN | 1520-5207 |
ISSN (online) | 1520-5207 |
DOI | 10.1021/acs.jpcb.2c06115 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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