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Yue J, Chen Y, Wang X, Xu B, Xu Z, Liu X, Chen Z, Zhang K, Jiang W. Artificial phosphatase upon premicellar nanoarchitectonics of lanthanum complexes with long-chained imidazole derivatives. J Colloid Interface Sci 2022; 627:459-468. [PMID: 35868041 DOI: 10.1016/j.jcis.2022.07.023] [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: 02/02/2022] [Revised: 05/17/2022] [Accepted: 07/04/2022] [Indexed: 10/17/2022]
Abstract
Four novel long chain-containing tridentate imidazole derivatives (Ln, n = 1, 2, 3, 4) were synthesized for in situ formation of mononuclear lanthanum(III) complexes as artificial phosphodiesterases. These in-situ formed La(III) complexes (named LaLn) were used to catalyze the transesterification of 2-hydroxypropyl p-nitrophenyl phosphate (HPNP), a classic RNA model. Critical aggregation concentrations (CAC) were determined for the as-prepared tridentate imidazole derivatives as ligands and corresponding mixtures of equivalent ligand and La3+ ion with a mole rate of 1:1. It denotes that the introduction of La3+ ion increases the CAC values of imidazole derivatives by about 2 to 3 folds. Foaming test shows that the foam height is positively correlated with the length of hydrophobic chain. Transesterification of HPNP mediated by LaLn nanoarchitectonics indicates that the introducing of hydrophobic chain benefits rate enhancement, showing excess three orders of magnitude acceleration under physiological conditions (pH 7.0, 25 °C). Moreover, catalytic reactivities of these La(III) complexes increased along with the increase in chain length: LaL1 < LaL2 < LaL3 < LaL4, suggesting a positive correlation to hydrophobic chain length.
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Affiliation(s)
- Jian Yue
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Yu Chen
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Xiuyang Wang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Bin Xu
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China.
| | - Zhigang Xu
- School of Pharmacy, Chongqing University of Arts and Sciences, Chongqing, Yongchuan 402160, PR China
| | - Xiaoqiang Liu
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Zhongzhu Chen
- School of Pharmacy, Chongqing University of Arts and Sciences, Chongqing, Yongchuan 402160, PR China
| | - Kaiming Zhang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Weidong Jiang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR 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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Yu L, Li FZ, Xie JQ, Cai S. DNA Cleavage Activity: Comparison of two Lanthanum Complexes Based on Aza-Crown Ethers with Different Numbers of Nitrogen Atoms. PROGRESS IN REACTION KINETICS AND MECHANISM 2015. [DOI: 10.3184/146867815x14420468512656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Based on the unique characteristics of lanthanum ion and aza-crown ethers, the lanthanum complexes of two aza-crown ether (L1: 1,10-Dioxa-4,7,13,16-tetraazacyclo-octadecane and L2: 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane) were designed and synthesised. The interaction between these two complexes and DNA was measured by UV-Vis spectroscopy and gel electrophoresis. Moreover, a series of experiments of cleavage of pUC19 DNA were conducted to illustrate the acidity, time and concentration effects. The results indicated that the two metal complexes can accelerate the breakage of DNA from its supercoiled form (form I) to the nicked form (form II) at near-physiological conditions, and the optimum acidity of DNA catalytic cleavage is pH=6.5 and pH=7.0 for LaL1 and LaL2, respectively. Furthermore, the LaL1 exhibited better cleavage activity than LaL2 under the same conditions, thus supercoiled DNA was thoroughly cleaved to the nicked form under the appropriate conditions. The hydrolytic mechanism was verified by applying several oxygen-scavengers to the DNA catalytic cleavage.
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Affiliation(s)
- Lan Yu
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, P.R. China
| | - 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
| | - Shulan Cai
- College of Chemistry & Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, P.R. China, 643000
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Siters KE, Sander SA, Devlin JR, Morrow JR. Bifunctional Zn(II) complexes for recognition of non-canonical thymines in DNA bulges and G-quadruplexes. Dalton Trans 2015; 44:3708-16. [PMID: 25521076 DOI: 10.1039/c4dt03004d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Six Zn(II) complexes of derivatives of 1,4,7,10-tetraazacyclododecane (cyclen) were studied for binding to DNA sequences containing non-canonical thymines, including a hairpin with a single thymine bulge (T-bulge) and a G-quadruplex (H-telo) containing thymine loops. The cyclen-based macrocycles contained pendents with either two fused rings to give planar groups including quinolinone (QMC), coumarin (MCC) and quinoline (CQC) derivatives or a non-planar dansyl group (DSC). Macrocyclic complexes with three fused rings including an anthraquinone pendent (ATQ) were also studied. All Zn(II) complexes were stable in solution at micromolar concentrations and neutral pH with the Zn(L)(OH2) species prevailing for L = QMC and CQC at pH 7.5 and 100 mM NaCl. Immobilized T-bulge or H-telo G-quadruplex was used to study binding of the complexes by surface plasmon resonance (SPR) for several of the complexes. For the most part, data matched well with that obtained by isothermal calorimetry (ITC) and, for fluorescent complexes, by fluorescence titrations. Data showed that Zn(II) complexes containing planar aromatic pendents with two fused rings bound to T-bulge more tightly than complexes with non-planar pendents such as DSC. The H-telo DNA exhibited multiple binding sites for all complexes containing aromatic pendents. The complexes with two fused rings bound with low micromolar dissociation constants and two binding sites whereas a complex with three fused rings (ATQ) bound to three sites. This study shows that different pendent groups on Zn(II) cyclen complexes impart selectivity for recognition of non-canonical DNA structures.
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Affiliation(s)
- Kevin E Siters
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260, USA.
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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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Rednic MI, Hădade ND, Bogdan E, Grosu I. Macrocycles embedding phenothiazine or similar nitrogen and/or sulphur containing heterocycles. J INCL PHENOM MACRO 2014. [DOI: 10.1007/s10847-014-0455-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Siters KE, Sander SA, Morrow JR. Selective Binding of Zn 2+Complexes to Non-Canonical Thymine or Uracil in DNA or RNA. PROGRESS IN INORGANIC CHEMISTRY: VOLUME 59 2014. [DOI: 10.1002/9781118869994.ch03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Massoud SS, Perkins RS, Louka FR, Xu W, Le Roux A, Dutercq Q, Fischer RC, Mautner FA, Handa M, Hiraoka Y, Kreft GL, Bortolotto T, Terenzi H. Efficient hydrolytic cleavage of plasmid DNA by chloro-cobalt(II) complexes based on sterically hindered pyridyl tripod tetraamine ligands: synthesis, crystal structure and DNA cleavage. Dalton Trans 2014; 43:10086-103. [PMID: 24872210 DOI: 10.1039/c4dt00615a] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Four new cobalt(ii) complexes [Co(6-MeTPA)Cl]ClO4/PF6 (2/2a), [Co(6-Me2TPA)Cl]ClO4/PF6 (3/3a), [Co(BPQA)Cl]ClO4/PF6 (4/4a) and [Co(BQPA)Cl]ClO4/PF6 (5/5a) as well as [Co(TPA)Cl]ClO4 (1) where TPA = tris(2-pyridylmethyl)amine, 6-MeTPA = ((6-methyl-2-pyridyl)methyl)bis(2-pyridylmethyl)amine, 6-Me2TPA = bis(6-methyl-2-pyridyl)methyl)-(2-pyridylmethyl)amine, BPQA = bis(2-pyridylmethyl)-(2-quinolylmethyl)-amine and BQPA = bis(2-quinolylmethyl)-(2-pyridylmethyl)amine were synthesized and structurally characterized. Single crystal X-ray crystallography confirmed the distorted trigonal bipyramidal geometries of complexes 2a-5a. Spectrophotometric titrations and conductivity measurements of the complexes in the CH3CN-H2O mixture showed that the chloro complexes exist in equilibrium with the corresponding hydrolyzed aqua species, [Co(L)(H2O)](2+). The pKa values of the coordinated H2O in aqua complexes vary from 8.4 to 8.7 (37 °C). The interactions of the complexes (1-5) with DNA have been investigated at pH = 7.0 and 9.0 (10 mM Tris-HCl buffer) and 37 °C where very high catalytic cleavage was observed. Under pseudo Michaelis-Menten kinetic conditions, the catalytic rate constants, kcat, decrease in the order 4>2>5>1>3. At pH 7.0 (10 mM Tris-HCl buffer) and 37 °C, the kcat value for complex 4 (6.02 h(-1)), where [Co(BPQA)(H2O)](2+) is the major species, corresponds to 170 million rate enhancement over the non-catalyzed DNA. Electrophoretic experiments conducted in the presence and absence of radical scavengers (DMSO, KI, NaN3) ruled out the oxidative mechanistic pathway of the reaction and suggested that the hydrolytic mechanism is the preferred one. This finding was in agreement with the observed increase in the kcat values at pH 9.0 compared to the corresponding values at pH 7.0 as a result of the increased concentration of the reactive hydroxo species, [Co(L)(OH)](+). The reactivity of the synthesized complexes in catalyzing the DNA cleavage is discussed in relation to the steric effect imposed by the coordinated pyridyl ligand around the central cobalt(ii) center.
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Affiliation(s)
- Salah S Massoud
- Department of Chemistry, University of Louisiana at Lafayette, P.O. Box 44370 Lafayette, LA 70504, USA.
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Massoud SS, Louka FR, Xu W, Perkins RS, Vicente R, Albering JH, Mautner FA. DNA Cleavage by Structurally Characterized Dinuclear Copper(II) Complexes Based on Triazine. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100157] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Effect of the central metal ion on the cleavage of DNA by [M(TPA)Cl]ClO4 complexes (M=CoII, CuII and ZnII, TPA=tris(2-pyridylmethyl)amine): An efficient artificial nuclease for DNA cleavage. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.04.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Louka FR, Spell ML, Grebowicz J, Albering JH, Mautner FA, Massoud SS. Coordination chemistry of 1,4-bis[bis(2-pyridylmethyl)aminomethyl]benzene with copper(II). J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.03.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bartoli S, Bazzicalupi C, Biagini S, Borsari L, Bencini A, Faggi E, Giorgi C, Sangregorio C, Valtancoli B. Cu(ii) complexation with an acridine-containing macrocycle. Assembly of water cluster chains within the cavity of tetranuclear metallomacrocycles. Dalton Trans 2009:1223-30. [DOI: 10.1039/b815040k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nwe K, Andolina CM, Morrow JR. Tethered Dinuclear Europium(III) Macrocyclic Catalysts for the Cleavage of RNA. J Am Chem Soc 2008; 130:14861-71. [DOI: 10.1021/ja8037799] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kido Nwe
- Department of Chemistry, University at Buffalo, State University of New York, Amherst, New York 14260-3000
| | - Christopher M. Andolina
- Department of Chemistry, University at Buffalo, State University of New York, Amherst, New York 14260-3000
| | - Janet R. Morrow
- Department of Chemistry, University at Buffalo, State University of New York, Amherst, New York 14260-3000
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Bal-Demirci T. Synthesis, spectral characterization of the zinc(II) mixed-ligand complexes of N(4)-allyl thiosemicarbazones and N,N,N′,N′-tetramethylethylenediamine, and crystal structure of the novel [ZnL2(tmen)] compound. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.10.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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