Cu(I) complexes of bis(methyl)(thia/selena) salen ligands: Synthesis, characterization, redox behavior and DNA binding studies

Asatkar, Ashish K.; Tripathi, Mamta; Panda, Snigdha; Zade, Sanjio S.

doi:10.1016/j.saa.2016.07.029

Cited by 32 publications

(14 citation statements)

References 72 publications

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“…Recently, it was found that this weak acid has properties that are similar to those of drug‐like molecules that function as anti‐cancer, anti‐malarial, anti‐bacterial and anti‐fungal agents . Deducing the mechanism of HAs action, it was observed that this molecule could bind to nucleic acids (DNA/RNA), which resulted in an alteration in the conformation of DNA. This change in DNA conformation after binding was the basic marker step of its anti‐cancer properties .…”

Section: Introductionmentioning

confidence: 99%

Explication of bovine serum albumin binding with naphthyl hydroxamic acids using a multispectroscopic and molecular docking approach along with its antioxidant activity

et al. 2019

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In the present investigation, the protein-binding properties of naphthyl-based hydroxamic acids (HAs), N-1-naphthyllaurohydroxamic acid (1) and N-1-naphthyl-pmethylbenzohydroxamic acid (2) were studied using bovine serum albumin (BSA) and UV-visible spectroscopy, fluorescence spectroscopy, diffuse reflectance spectroscopy-Fourier transform infrared (DRS-FTIR), circular dichroism (CD), and cyclic voltammetry along with computational approaches, i.e. molecular docking.Alteration in the antioxidant activities of compound 1 and compound 2 during interaction with BSA was also studied. From the fluorescence studies, thermodynamic parameters such as Gibb's free energy (ΔG), entropy change (ΔS) and enthalpy change (ΔH) were calculated at five different temperatures (viz., 298, 303, 308, 313 or 318 K) for the HAs-BSA interaction. The results suggested that the binding process was enthalpy driven with dominating hydrogen bonds and van der Waals' interactions for both compounds. Warfarin (WF) and ibuprofen (IB) were used for competitive site-specific marker binding interaction and revealed that compound 1 and compound 2 were located in subdomain IIA (Sudlow's site I) on the BSA molecule. Conclusions based on above-applied techniques signify that various non-covalent forces were involved during the HAs-BSA interaction. Therefore the resulted HAs-BSA interaction manifested its effect in transportation, distribution and metabolism for the drug in the blood circulation system, therefore establishing HAs as a drug-like molecule. KEYWORDS bovine serum albumin (BSA), circular dichroism, fluorescence spectroscopy, molecular docking, naphthylhydroxamic acids

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Section: Introductionmentioning

confidence: 99%

Explication of bovine serum albumin binding with naphthyl hydroxamic acids using a multispectroscopic and molecular docking approach along with its antioxidant activity

et al. 2019

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“…Molecular docking plays an important role in binding affinity and orienting different drugs to their bio‐targets such as proteins. Docking of the target compounds into the enoyl‐acyl carrier protein reductase, which is one of the M. tuberculosis enzymes, InhA, shows structural information on the binding interactions . Docking was conducted with a procedure involving multiple conformer shape‐matching alignment of a molecule to a cavity followed by energy minimization on both complexes ( 1 ) and ( 2 ) and a pair of InhA structures in PDB format (http://www.pdb.org) at the binding region.…”

Section: Resultsmentioning

confidence: 99%

Spectroscopic studies, structural characterization and electrochemical studies of two cobalt (III) complexes with tridentate hydrazone Schiff base ligands: Evaluation of antibacterial activities, DNA‐binding, BSA interaction and molecular docking

Fekri

Salehi

Asadi

et al. 2017

Applied Organom Chemis

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Co(III) complexes of tridentate Schiff base ligands derived from N‐(2‐hydroxybenzylideneamino)benzamide (H2L1) and 2‐(2‐hydroxybenzylidene)hydrazine‐1‐carboxamide (H2L2) were synthesized and characterized using IR, Raman, 1H–NMR and UV–Vis spectroscopies. X‐ray single crystal structures of complexes 1 and 2 have also been determined, and it was indicated that these Co(III) complexes are in a distorted octahedral geometry. The cyclic voltammetry (CV) of the complexes indicates an irreversible redox behavior for both complexes 1 and 2. The antibacterial effects of the synthesized compounds have been tested by minimum inhibitory concentration and minimum bactericidal concentration methods, which suggested that the metal complexes exhibit better antibacterial effects than the ligands against Gram‐positive bacteria. The effects of the drug (drug = ligands and complexes) on bovine serum albumin (BSA) were examined using circular dichroism (CD) spectropolarimetry, and it was revealed that the BSA (BSA, as a carrier protein) secondary structure changed in the presence of the drug. Interaction of the drug with calf‐thymus DNA (CT‐DNA) was investigated by UV–Vis absorption, fluorescence emission, CV and CD spectroscopy. Binding constants were determined using UV–Vis absorption. The results indicated that the studied Schiff bases bind to DNA, with the hyperchromic effect and non‐intercalative mode in which the metal complexes are more effective than ligands. Furthermore, molecular docking simulation was used to obtain the energetic and binding sites for the interaction of the complexes with Mycobacterium tuberculosis enoyl‐acyl carrier protein reductase (InhA), and results showed that complex 1 has more binding energy.

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“…It has been found that the metal salen have functional enzyme mimic models as superoxide dismutase [119,120], and Galactose oxidase mimics [121], Cytochrome P-450 mimics [122], Cytochrome P-450 mimics [123], vitamin B 12 [124,125]. Metallosalens are capable of inducing specific damage to DNA or RNA and have been recommended as footprinting agents [126,127]. Salen complexes are versatile (biomimetic) catalysts for important organic transformations.…”

Section: Biological Activitiesmentioning

confidence: 99%

Salen and Related Ligands

Asatkar¹,

Tripathi²,

Asatkar³

2020

Stability and Applications of Coordination Compounds

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The salen and related ligands are very popular among the inorganic chemists due to multiple reasons such as ease in synthesis, coordinating ability with very long range of metal ions, facilitating the metal ions to adopt various geometries, ability of stabilising the metal ion in variable oxidation states and potential applications of metallosalen in several fields. The most common application of metallosalen is in the field of catalysis because of their recoverability, reusability, high efficiency, high selectivity and their capability of working as homogeneous as well as heterogeneous catalysts for numerous functional group manipulations including asymmetric synthesis. Molecular magnetism, sensory applications, bioinorganic activities and medicinal applications of metallosalen are also very promising areas of their applications. Porous materials involving metal organic frameworks (MOFs) and supramolecular building blocks are increasingly getting attention of researchers for the gas absorption and heterogeneous catalysis.

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Cu(I) complexes of bis(methyl)(thia/selena) salen ligands: Synthesis, characterization, redox behavior and DNA binding studies

Cited by 32 publications

References 72 publications

Explication of bovine serum albumin binding with naphthyl hydroxamic acids using a multispectroscopic and molecular docking approach along with its antioxidant activity

Explication of bovine serum albumin binding with naphthyl hydroxamic acids using a multispectroscopic and molecular docking approach along with its antioxidant activity

Spectroscopic studies, structural characterization and electrochemical studies of two cobalt (III) complexes with tridentate hydrazone Schiff base ligands: Evaluation of antibacterial activities, DNA‐binding, BSA interaction and molecular docking

Salen and Related Ligands

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