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Synthesis, characterization, in vitro biological evaluation and molecular docking studies of newly synthesized mononuclear lanthanum(III) complexes of N,N'-bis(2-aminoethyl)oxamide and phenanthroline bases. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kumar S, Gupta SK. Synthesis, spectral and electrochemical studies of mononuclear samarium (II), europium (II) and ytterbium (II) complexes with a NNO donor Schiff base derived from 4-methyl-2,6-dibenzoylphenol and propane-1,3-diamine. INORG NANO-MET CHEM 2019. [DOI: 10.1080/24701556.2019.1606828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Sanjay Kumar
- School of Studies in Chemistry, Jiwaji University, Gwalior, India
| | - Sushil K Gupta
- School of Studies in Chemistry, Jiwaji University, Gwalior, India
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Liu Y, Zhou XQ, Lu J, Li ST, Nie Y, Tian JL, Liu X, Yan SP. Biological evaluation of rare earth complexes bearing 1H
-imidazo[4,5-f
]-1,10-phenanthroline moiety as promising anticancer chemotherapeutics. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4617] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yue Liu
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Xue-Quan Zhou
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
- Leiden Institute of Chemistry, Gorlaeus Laboratories; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Jing Lu
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Si-Tong Li
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Yan Nie
- Medical School of Nankai University, Nankai University; Tianjin 300071 People's Republic of China
| | - Jin-Lei Tian
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Xin Liu
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Shi-Ping Yan
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
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Jiang B, Cai S, Xie J, Feng FM. Nuclease Activity of Diaza-Crown Ether Complexes of Cerium(III) with Different Functional Groups as Side Arms. PROGRESS IN REACTION KINETICS AND MECHANISM 2018. [DOI: 10.3184/146867818x15161889114448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cerium(III) complexes of two ligands of a diaza-crown ether with different functional groups as side arms were synthesised and characterised. The catalytic ability of the cerium(III) complexes for pUC19 DNA cleavage was investigated and compared using agarose gel electrophoresis. The results indicate that the catalytic activity of the complex CeL2 [L2 = 2,2′- (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-diyl) diacetamide] with two carbamoylmethyl groups is significantly higher than the complex CeL1 [L1 = 2,2′- (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-diyl) diethanol] with two hydroxyethyl groups under the same conditions. The optimum catalytic concentrations of CeL1 and CeL2 were 7.69 × 10−5 and 3.08 × 10−5 mol L−1 respectively and excessively high concentrations of the complexes can reduce their catalytic efficiency due to the formation of inactive μ-hydroxo dimers. The optimum catalytic acidities of CeL1 and CeL2 were pH 7.0 and 7.5 respectively and excessively high pH of the reaction system can reduce the catalytic efficiency of the complexes due to the formation of cerium(III) hydroxide. DNA cleavage promoted by the two complexes takes place via the same hydrolytic pathway and so the activity difference of the two complexes is attributed to the stability of the complexes, rather than the catalytic mechanism.
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Affiliation(s)
- Bingying Jiang
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, P.R. China
| | - Shulan Cai
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
| | - Jiaqing Xie
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
| | - Fa-Mei Feng
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, P.R. China
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Xie J, Zhang Y, Cai S, Feng F. Hydrolytic activity of a crown ether-lanthanum complex in the phosphate diester and DNA cleavage. MAIN GROUP CHEMISTRY 2016. [DOI: 10.3233/mgc-160211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jiaqing Xie
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, P.R. of China
| | - Ya Zhang
- Chongqing Environmental Monitoring Center, Chongqing, P.R. of China
| | - Shulan Cai
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, P.R. of China
| | - Famei Feng
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, P.R. of China
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Xie JQ, Zhang Y, Cai SL, Li FZ, Feng FM. Catalytic Capacity of Diaza-Crown Ether Lanthanum Complexes with Varied Ligands for Phosphate Ester Hydrolysis in Different Media. PROGRESS IN REACTION KINETICS AND MECHANISM 2016. [DOI: 10.3184/146867816x14710833328904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Two diaza-crown ether compounds, 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (L0) and its derivative with double acetamide side arms 2,2'-(1,4,10,13-teteaoxa-7,16-diazacyclooctadecane-7,16-diyl)diacetamide (L), and the corresponding two lanthanum complexes were synthesised and characterised. The catalytic capacity of the lanthanum complexes was investigated for the hydrolysis of bis(4-nitrophenyl) phosphate ester (BNPP) in aqueous solution and in CTAB micelles. Kinetic studies show that the catalytic efficiency of complex LaL is obviously higher than that of complex LaL0, and introducing acetamide into the ring of the diaza-crown ether can improve the catalytic ability of the complexes for BNPP hydrolysis. A rate enhancement of about two times was observed for the complex–micelle in contrast with the complex–water system for BNPP catalytic hydrolysis. The optimal pH for the catalytic reaction in the two kinds of media systems show an approximately 0.4 pH unit difference. The two complexes possess higher thermostability, and are more stable in the micelle than in aqueous solution. Based on the results and their analysis, a catalytic mechanism with cooperation of acetamide is proposed.
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Affiliation(s)
- Jia-qing Xie
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, P.R. China
| | - Ya Zhang
- Chongqing Environmental Monitoring Center, Chongqing 401147, P.R. China
| | - Shu-lan Cai
- College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, P.R. China
| | - Fang-zhen Li
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, P.R. China
| | - Fa-mei Feng
- College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, P.R. China
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Zovčáková M, Španová A, Pantůček R, Doškař J, Rittich B. Efficient non-enzymatic cleavage of Staphylococcus aureus plasmid DNAs mediated by neodymium ions. Anal Biochem 2016; 507:66-70. [PMID: 27237372 DOI: 10.1016/j.ab.2016.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/10/2016] [Accepted: 05/15/2016] [Indexed: 11/25/2022]
Abstract
Staphylococcus aureus plasmids are the main factor in the spreading of antibacterial resistance among bacterial strains that has emerged on a worldwide scale. Plasmids recovered from 12 clinical and food isolates of S. aureus were treated with 10 mM free lanthanide Nd(3+) ions (non-enzymatic cleavage agent) in Hepes buffer (pH 7.5) at 70 °C. Topological forms of plasmids-closed circular (ccc), open circular (oc), and linear (lin)-produced by cleavage at different times were separated using pulsed-field agarose gel electrophoresis. The method is proposed to detect and differentiate several plasmids in the same bacterial strain according to their size.
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Affiliation(s)
- Monika Zovčáková
- Faculty of Chemistry, Brno University of Technology, CZ-612 00 Brno, Czech Republic
| | - Alena Španová
- Faculty of Chemistry, Brno University of Technology, CZ-612 00 Brno, Czech Republic
| | - Roman Pantůček
- Department of Experimental Biology, Faculty of Science, Masaryk University, CZ-611 37 Brno, Czech Republic
| | - Jiří Doškař
- Department of Experimental Biology, Faculty of Science, Masaryk University, CZ-611 37 Brno, Czech Republic
| | - Bohuslav Rittich
- Faculty of Chemistry, Brno University of Technology, CZ-612 00 Brno, Czech Republic.
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Cai SL, Feng FM, Liu FA. Function of the Metallomicelle from an Aza-Crown Ether Complex with an Acetamide Branch as a Highly Potent Promoter of Phosphate Diester Hydrolytic Cleavage. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2015.1088451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Feng FM, Cai SL, Liu FA. Phosphate Diester Cleavage Promoted by the Metallomicelles of Ce(III) Complexes of Aza-Crown Ether with Different Numbers of Nitrogen Atoms. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2015.1024320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li F, Feng F, Wu J, Xie J, Li S. DNA binding and cleavage properties of the Ce (III) complex of a diaza-crown ether. PROGRESS IN REACTION KINETICS AND MECHANISM 2016. [DOI: 10.3184/146867816x14490554565537] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The hydrolytic cleavage of pUC19 DNA as promoted by the trivalent cerium complex (CeL) of diaza-crown ether ligand L (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane) was examined in detail. The interaction of CeL with calf thymus DNA was investigated by UV-Vis spectroscopy. Furthermore, studies on the effects of pH, reaction time, and the concentration of CeL on cleavage of pUC19 DNA were carried out by gel electrophoresis. The results indicate that CeL can bind to DNA electrostatically with a binding constant of 2.18x104 M−1; CeL can promote the cleavage of plasmid pUC19 DNA from supercoiled to the nicked form under the appropriate conditions, and the optimal pH value is 7.54. The lack of effect of radical scavengers indicates that the cleavage involves hydrolytic cleavage.
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Affiliation(s)
- Fangzhen Li
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054
| | - Famei Feng
- College of Chemistry & Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000
| | - Jiaoyi Wu
- College of Chemistry and Molecular Engineering, Peking University, Peking 100871, P. R. China
| | - Jiaqing Xie
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054
| | - Shuo Li
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054
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Yu L, Li FZ, Wu JY, Xie JQ, Li S. Development of the aza-crown ether metal complexes as artificial hydrolase. J Inorg Biochem 2015; 154:89-102. [PMID: 26460062 DOI: 10.1016/j.jinorgbio.2015.09.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 09/05/2015] [Accepted: 09/30/2015] [Indexed: 01/13/2023]
Abstract
Hydrolases play a crucial role in the biochemical process, which can catalyze the hydrolysis of various compounds like carboxylic esters, phosphoesters, amides, nucleic acids, peptides, and so on. The design of artificial hydrolases has attracted extensive attention due to their scientific significance and potential applications in the field of gene medicine and molecular biology. Numerous macrocyclic metal complexes have been used as artificial hydrolase in the catalytic hydrolysis of the organic substrate. Aza-crown ether for this comment is a special class of the macrocyclic ligand containing both the nitrogen atoms and oxygen atoms in the ring. The studies showed that the aza-crown complexes exhibited high activity of hydrolytic enzyme. However, the aza-crown ether metal complex as artificial hydrolase is still very limited because of its difficulty in synthesis. This review summarizes the development of the aza-crown ether metal complexes as the artificial hydrolase, including the synthesis and catalysis of the transition metal complexes and lanthanide metal complexes of aza-crown ethers. The purpose of this review is to highlight: (1) the relationship between the structure and hydrolytic activity of synthetic hydrolase; (2) the synergistic effect of metal sites and ligands in the course of organic compound hydrolysis; and (3) the design strategies of the aza-crown ethers as hydrolase.
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Affiliation(s)
- Lan Yu
- College of Chemistry and Chemical Engineering,Chongqing University of Technology, Chongqing 400054, PR China
| | - Fang-zhen Li
- College of Chemistry and Chemical Engineering,Chongqing University of Technology, Chongqing 400054, PR China
| | - Jiao-yi Wu
- College of Chemistry and Molecular Engineering, Peking University, Peking 100871, PR China
| | - Jia-qing Xie
- College of Chemistry and Chemical Engineering,Chongqing University of Technology, Chongqing 400054, PR China
| | - Shuo Li
- College of Chemistry and Chemical Engineering,Chongqing University of Technology, Chongqing 400054, PR China.
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Li FZ, Xie JQ, Feng FM. Copper and zinc complexes of a diaza-crown ether as artificial nucleases for the efficient hydrolytic cleavage of DNA. NEW J CHEM 2015. [DOI: 10.1039/c4nj02193b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper and zinc complexes of a diaza-crown ether, serving as artificial nucleases, exhibited high nuclease activities towards the hydrolytic cleavage of DNA.
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Affiliation(s)
- Fang-zhen Li
- College of Chemistry and Chemical Engineering
- Chongqing University of Technology
- Chongqing 400054
- P. R. China
| | - Jia-qing Xie
- College of Chemistry and Chemical Engineering
- Chongqing University of Technology
- Chongqing 400054
- P. R. China
| | - Fa-mei Feng
- College of Chemistry & Pharmaceutical Engineering
- Sichuan University of Science & Engineering
- Zigong, Sichuan 643000
- P. R. China
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Kumar R, Obrai S, Kaur Jassal A, Hundal MS. Supramolecular architectures of N,N,N′,N′-tetrakis-(2-hydroxyethyl)ethylenediamine and tris(2-hydroxyethyl)amine with La(iii) picrate. RSC Adv 2014. [DOI: 10.1039/c4ra05835f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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The interactions between an aza-cyclic cerium (III) complex and pUC19 DNA. CHINESE JOURNAL OF CATALYSIS 2014. [DOI: 10.1016/s1872-2067(14)60017-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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