Insights into the molecular interaction between two polyoxygenated cinnamoylcoumarin derivatives and human serum albumin

Anahita Khammari, Ali Akbar Saboury, Mohammad Hossein Karimi-Jafari, Mehdi Khoobi, Atiyeh Ghasemi, Saeed Yousefinejad, Osama K. Abou-Zied

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Ligand binding studies on human serum albumin (HSA) are crucial in determining the pharmacological properties of drug candidates. Here, two representatives of coumarin-chalcone hybrids were selected and their binding mechanism was identified via thermodynamics techniques, curve resolution analysis and computational methods at molecular levels. The binding parameters were derived using spectroscopic approaches and the results point to only one pocket located near the Trp214 residue in subdomain IIA of HSA. The protein tertiary structure was altered during ligand binding and formed an intermediate structure to create stronger ligand binding interactions. The best binding mode of the ligand was initially estimated by docking on an ensemble of HSA crystallographic structures and by molecular dynamics (MD) simulations. Per residue interaction energies were calculated over the MD trajectories as well. Reasonable agreement was found between experimental and theoretical results about the nature of binding, which was dominated by hydrogen bonding and van der Waals contributions.

Original languageEnglish
Pages (from-to)10099-10115
Number of pages17
JournalPhysical Chemistry Chemical Physics
Volume19
Issue number15
DOIs
Publication statusPublished - 2017

Fingerprint

Molecular interactions
molecular interactions
albumins
Serum Albumin
serums
Ligands
Derivatives
Molecular dynamics
ligands
Chalcone
Computational methods
Hydrogen bonds
molecular dynamics
Trajectories
Thermodynamics
Computer simulation
Pharmaceutical Preparations
drugs
trajectories
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Insights into the molecular interaction between two polyoxygenated cinnamoylcoumarin derivatives and human serum albumin. / Khammari, Anahita; Saboury, Ali Akbar; Karimi-Jafari, Mohammad Hossein; Khoobi, Mehdi; Ghasemi, Atiyeh; Yousefinejad, Saeed; Abou-Zied, Osama K.

In: Physical Chemistry Chemical Physics, Vol. 19, No. 15, 2017, p. 10099-10115.

Research output: Contribution to journalArticle

Khammari, Anahita ; Saboury, Ali Akbar ; Karimi-Jafari, Mohammad Hossein ; Khoobi, Mehdi ; Ghasemi, Atiyeh ; Yousefinejad, Saeed ; Abou-Zied, Osama K. / Insights into the molecular interaction between two polyoxygenated cinnamoylcoumarin derivatives and human serum albumin. In: Physical Chemistry Chemical Physics. 2017 ; Vol. 19, No. 15. pp. 10099-10115.
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