Hydrothermal synthesis of a paramagnetic alkali supermolecule, its effect on catalase inhibitory by spectroscopic and theoretical investigation

Razmara, Zohreh; Shiri, Fereshteh; Shahraki, Somaye

doi:10.1016/j.ica.2020.119946

Cited by 4 publications

(2 citation statements)

References 34 publications

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“…Our previous studies explained the BLC structure in detail. [16,46] The most significant docking energy (most negative) for the anionic and cationic parts were À9.79 and À9.02 kcal/mol, respectively, that selected as the representative binding poses. The affinity of nine conformations Smina output for each part was presented in Table S1.…”

Section: Molecular Docking Resultsmentioning

confidence: 99%

“…[ 11–14 ] It is said that applying computational modeling to drug discovery as a hugely successful approach allows drug‐receptor interactions to be anticipated. [ 15–17 ] Molecular docking simulation can predict the drug‐receptor interactions and confirm the experimental results from spectroscopy data. [ 18,19 ] In this respect, we also docked iron complex to BLC.…”

Section: Introductionmentioning

confidence: 83%

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A multidisciplinary study for investigating the interaction of an iron complex with bovine liver catalase

Hashemizadeh

Shiri

Shahraki

et al. 2022

Applied Organom Chemis

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Catalase (CAT) is an essential protein protecting the cell from oxidative damage by reactive oxygen species. CAT is a heme enzyme in which iron metal plays a crucial role in catalytic activity. In this research, an iron (II, III) complex ([Fe (bpy) 3 ] [Fe (dipic) 2 ] 2 .7H 2 O; dipic À2 = pyridine-2,6-dicarboxylato and bpy = 2,2 0 -bipyridine) was used to evaluate its binding interactions with bovine liver catalase (BLC) using spectroscopic and molecular docking methods. The experimental results demonstrated that the catalytic activity of BLC increased slightly and reached 106% of the initial activity. The interactions between Fe complex and BLC led to the quenching of the catalase fluorescence emission via the static quenching mechanism. Thermodynamic parameters demonstrated that the predominant interactions between catalase and Fe complex are hydrogen bond and van der Waals and the process is exothermic and enthalpy driven. The circular dichroism (CD) and synchronous fluorescence results showed that the Fe complex altered the structure and conformation of BLC. It changed the secondary structure of BLC by decreasing α-helix and β-sheet content. Also, the experimental data were analyzed using Multivariate Curve Resolution-Alternating Least Square (MCR-ALS) to the resolution of measured complex spectra and estimate the number of independent chemical species. The docking results in agreement with experimental data showed that the cationic part of the complex with catalase is mainly hydrophobic and van der Waals interactions, and for the anionic part are hydrophobic, van der Waals, and hydrogen bonding.

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Section: Molecular Docking Resultsmentioning

confidence: 99%