Kinetic and thermodynamic insights into interaction of albumin with piperacillin: Spectroscopic and molecular modeling approaches

Fathi, Farzaneh; Sharifi, Maryam; Jafari‬, Amir Homayoun; Kakavandi, Naser; Kashanian, Soheila; Dolatabadi, Jafar Ezzati Nazhad; Rashidi, Mohammad‐Reza

doi:10.1016/j.molliq.2019.111770

Cited by 53 publications

(22 citation statements)

References 31 publications

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“…Table 1 shows the calculated Stern-Volmer (K sv ) constants decrease with increasing temperature, suggesting the static mechanism predominance in HSA-DR interactions. Furthermore, the k q values presented in table 1 are consistent with the static mechanism, considering that the constants were higher than the maximum scattering collisional quenching constant (2x10 10 M -1 s -1 ) (Alsaif et al, 2020;Fathi et al, 2019).…”

Section: Mechanism Of Interactions By Fluorescence Quenchingsupporting

confidence: 76%

Probing the toxic interactions between the reactive dye Drimaren Red and Human Serum Albumin

Menezes

Assis

Neto

et al. 2021

Preprint

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Azo dyes like Drimaren Red CL-5B (DR, CI Reactive Red 241) represent a class of compounds extensively used in the textile industry and are extremely dangerous to the environment and human health. Therefore, understanding the binding characteristics between such substances and biological macromolecules is essential from a toxic-kinetic perspective. The molecular interaction between DR and Human Serum Albumin (HSA) was investigated through spectroscopic techniques and molecular docking approaches. The results indicate that DR quenches HSA fluorescence following a static mechanism (corroborated by UV-Vis studies) with a moderate interaction (Ka~105 M-1), guided by electrostatic interactions (DS> 0 and DH< 0). DR is 5.52 nm distant from fluorophore residue Trp-214 (according to FRET investigations), and the interaction is mainly related to Tyr residues (as revealed by synchronous fluorescence). The Ellman assay identified a decrease in the content of HSA free thiol. The results of the RLS demonstrate that there are HSA alterations, suggesting damage to the confirmation of the protein. Molecular docking suggests the binding site of DR was located in subdomain IIB HSA, corroborating the experimental properties. Finally, the results suggest a high potential for DR toxicity triggered by contact with key proteins, which affects the biomolecule functionalities.

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Section: Mechanism Of Interactions By Fluorescence Quenchingsupporting

confidence: 76%

Probing the toxic interactions between the reactive dye Drimaren Red and Human Serum Albumin

Menezes

Assis

Neto

et al. 2021

Preprint

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“…The α ‐helical contents were calculated from MRE values at 209 nm 51‐53 :

α goodbreak- helix (() %) goodbreak= \frac{{MRE}_{209} - 4000}{33,000 - 4000} goodbreak\times 100

where MRE 209 denotes the observed MRE value at 209 nm, 4000 denotes MRE value of the β ‐form and the random coil conformation cross in total, 33 000 denotes MRE value of a pure α –helix 51 . The α ‐helix content of lipase decreased from 48.8% to 35.4% with added LMP.…”

Section: Resultsmentioning

confidence: 99%

Binding mechanism of lipase with Lentinus edodes mycelia polysaccharide by multi‐spectroscopic methods

Liu

Chen

et al. 2021

J of Molecular Recognition

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It is an effective strategy to avoid obesity by inhibiting the activity of lipase. In this study, the binding mechanism of lipase and Lentinus edodes mycelia polysaccharide (LMP) were explored with multi‐spectral methods, for example, three‐dimensional (3D) fluorescence, Fourier‐transformed infrared (FT‐IR), and Raman spectra. At 290 K, the binding constant was 2.44 × 105 L/mol, there was only one binding site between LMP and lipase. Static quenching was the quenching mechanism. The major forces were hydrogen bonding and van der Waals force. The binding of LMP to lipase impacted the microenvironment around tyrosine and tryptophan residues. The polarity around these residues was decreased and hydrophobicity was enhanced. This study not only revealed the binding mechanism of LMP on lipase but also provided scientific evidence for expanding the application of LMP in functional food industries.

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“…The negative ΔH and ΔS implied that the aniline adsorption on the polymers was an exothermal process with more ordered arrangements. 51 The ΔG was calculated and Tables S5 and S6 display that the ΔG were 0.555, 1.053, and 1.551 kJ/mol at 298, 308, and 318 K, respectively. In addition, the polymers could be easily desorbed by a HCl aqueous solution containing 40% of ethanol.…”

Section: Resultsmentioning

confidence: 99%

Hyper-Cross-Linked Phenolic Hydroxyl Polymers with Hierarchical Porosity and Their Efficient Adsorption Performance

Wang

Gan

Huang

2020

Ind. Eng. Chem. Res.

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Functionalized hyper-cross-linked polymers with a unique porosity were promising materials, while their facile fabrication remains a challenge. Herein, a novel synthetic strategy was developed based on two Friedel–Crafts alkylation reactions for chloromethylated polystyrene and the hyper-cross-linked phenolic hydroxyl polymers were successfully fabricated. The first low-temperature reaction (at 313 K) offered the polymers plentiful phenolic hydroxyl and the second high-temperature reaction (at 358 K) provided the polymers with the hyper-cross-linking frameworks with a unique hierarchical porosity. Benefiting from the synthetic protocol, the resultant samples exhibited promising properties for aniline adsorption (q max: 198.8 mg/g) and CO2 capture (105 mg·g–1 at 273 K and 1 bar). Moreover, the hierarchical porosity facilitated the kinetic adsorption and about 90 min was enough to reach the equilibrium.

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Kinetic and thermodynamic insights into interaction of albumin with piperacillin: Spectroscopic and molecular modeling approaches

Cited by 53 publications

References 31 publications

Probing the toxic interactions between the reactive dye Drimaren Red and Human Serum Albumin

Probing the toxic interactions between the reactive dye Drimaren Red and Human Serum Albumin

Binding mechanism of lipase with Lentinus edodes mycelia polysaccharide by multi‐spectroscopic methods

Hyper-Cross-Linked Phenolic Hydroxyl Polymers with Hierarchical Porosity and Their Efficient Adsorption Performance

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