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Zagiel B, Peker T, Marquant R, Cazals G, Webb G, Miclet E, Bich C, Sachon E, Moumné R. Dynamic Amino Acid Side‐Chains Grafting on Folded Peptide Backbone**. Chemistry 2022; 28:e202200454. [DOI: 10.1002/chem.202200454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Benjamin Zagiel
- Sorbonne Université École normale supérieure PSL University CNRS Laboratoire des biomolécules, LBM 75005 Paris France
| | - Taleen Peker
- Sorbonne Université École normale supérieure PSL University CNRS Laboratoire des biomolécules, LBM 75005 Paris France
| | - Rodrigue Marquant
- Sorbonne Université École normale supérieure PSL University CNRS Laboratoire des biomolécules, LBM 75005 Paris France
| | - Guillaume Cazals
- UMR 5247-CNRS-UM-ENSCM Institut des Biomolécules Max Mousseron (IBMM) Université de Montpellier 34293 Montpellier France
| | - Gabrielle Webb
- Sorbonne Université École normale supérieure PSL University CNRS Laboratoire des biomolécules, LBM 75005 Paris France
| | - Emeric Miclet
- Sorbonne Université École normale supérieure PSL University CNRS Laboratoire des biomolécules, LBM 75005 Paris France
| | - Claudia Bich
- UMR 5247-CNRS-UM-ENSCM Institut des Biomolécules Max Mousseron (IBMM) Université de Montpellier 34293 Montpellier France
| | - Emmanuelle Sachon
- Sorbonne Université École normale supérieure PSL University CNRS Laboratoire des biomolécules, LBM 75005 Paris France
- MS3 U platform UFR 926 UFR 927 Sorbonne Université 4 place Jussieu 75005 Paris France
| | - Roba Moumné
- Sorbonne Université École normale supérieure PSL University CNRS Laboratoire des biomolécules, LBM 75005 Paris France
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Orrillo AG, Furlan RLE. Sulfur in Dynamic Covalent Chemistry. Angew Chem Int Ed Engl 2022; 61:e202201168. [PMID: 35447003 DOI: 10.1002/anie.202201168] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Indexed: 12/21/2022]
Abstract
Sulfur has been important in dynamic covalent chemistry (DCC) since the beginning of the field. Mainly as part of disulfides and thioesters, dynamic sulfur-based bonds (DSBs) have a leading role in several remarkable reactions. Part of this success is due to the almost ideal properties of DSBs for the preparation of dynamic covalent systems, including high reactivity and good reversibility under mild aqueous conditions, the possibility of exploiting supramolecular interactions, access to isolable structures, and easy experimental control to turn the reaction on/off. DCC is currently witnessing an increase in the importance of DSBs. The chemical flexibility offered by DSBs opens the door to multiple applications. This Review presents an overview of all the DSBs used in DCC, their applications, and remarks on the interesting properties that they confer on dynamic chemical systems, especially those containing several DSBs.
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Affiliation(s)
- A Gastón Orrillo
- Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, CONICET, Suipacha 531, Rosario, S2002LRK, Argentina
| | - Ricardo L E Furlan
- Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, CONICET, Suipacha 531, Rosario, S2002LRK, Argentina
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3
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Orrillo AG, Furlan RLE. Sulfur in Dynamic Covalent Chemistry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alfredo Gastón Orrillo
- Universidad Nacional de Rosario Facultad de Ciencias Bioquimicas y Farmaceuticas Organic Chemistry Suipacha 530 2000 Rosario ARGENTINA
| | - Ricardo L. E. Furlan
- Universidad Nacional de Rosario Facultad de Ciencias Bioquimicas y Farmaceuticas Organic Chemistry Suipacha 530 2000 Rosario ARGENTINA
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4
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Jou AF, Chou Y, Willner I, Ho JA. Imaging of Cancer Cells and Dictated Cytotoxicity Using Aptamer‐Guided Hybridization Chain Reaction (HCR)‐Generated G‐Quadruplex Chains. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Amily Fang‐Ju Jou
- Bioanalytical Chemistry and Nanobiomedicine Laboratory Department of Biochemical Science and Technology National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Department of Chemistry Chung Yuan Christian University No. 200, Chung Pei Road Taoyuan City 320314 Taiwan
| | - Yi‐Te Chou
- Bioanalytical Chemistry and Nanobiomedicine Laboratory Department of Biochemical Science and Technology National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
| | - Itamar Willner
- Institute of Chemistry Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Ja‐an Annie Ho
- Bioanalytical Chemistry and Nanobiomedicine Laboratory Department of Biochemical Science and Technology National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Department of Chemistry National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Center for Emerging Materials and Advance Devices National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Center for Biotechnology National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
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5
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Jou AFJ, Chou YT, Willner I, Ho JAA. Imaging of Cancer Cells and Dictated Cytotoxicity Using Aptamer-Guided Hybridization Chain Reaction (HCR)-Generated G-Quadruplex Chains. Angew Chem Int Ed Engl 2021; 60:21673-21678. [PMID: 34350685 DOI: 10.1002/anie.202106147] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/14/2021] [Indexed: 01/07/2023]
Abstract
DNA nanotechnology provides powerful tools for developing cancer theranostics. Here we introduce the autonomous surface-nucleolin-guided HCR that leads to the polymerization of G-quadruplex polymer chains, in which the ZnII -protoporphyrin IX is intercalated. We demonstrate that MDA-MB-231 (Triple Negative Breast Cancer cells, TNBC) with overexpressed surface nucleolin were able to induce HCR leading to the formation of the ZnII PPIX-loaded G-quadruplex polymer chains, while the M10 epithelial breast cells served as control. The ZnII PPIX-loaded nanowires allow the selective imaging of TNBC, and their permeation into the TNBC leads to selective cytotoxicity and guided photodynamic therapy toward the cancer cells due to structural perturbation of the membranes. The aptamer-guided HCR-generated G-quadruplex polymer chains may serve as a versatile tool to target TNBC featuring poor prognosis and high pathological risk of recurrence, thus offering a promising theranostic platform.
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Affiliation(s)
- Amily Fang-Ju Jou
- Bioanalytical Chemistry and Nanobiomedicine Laboratory Department of Biochemical Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.,Department of Chemistry, Chung Yuan Christian University, No. 200, Chung Pei Road, Taoyuan City, 320314, Taiwan
| | - Yi-Te Chou
- Bioanalytical Chemistry and Nanobiomedicine Laboratory Department of Biochemical Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Itamar Willner
- Institute of Chemistry, Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Ja-An Annie Ho
- Bioanalytical Chemistry and Nanobiomedicine Laboratory Department of Biochemical Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.,Department of Chemistry, National (Taiwan) University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.,Center for Emerging Materials and Advance Devices, National (Taiwan) University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.,Center for Biotechnology, National (Taiwan) University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
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6
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Frei P, Hevey R, Ernst B. Dynamic Combinatorial Chemistry: A New Methodology Comes of Age. Chemistry 2018; 25:60-73. [DOI: 10.1002/chem.201803365] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Priska Frei
- Institute of Molecular Pharmacy, PharmacenterUniversity of Basel Klingelbergstrasse 50 4056 Basel Switzerland
| | - Rachel Hevey
- Institute of Molecular Pharmacy, PharmacenterUniversity of Basel Klingelbergstrasse 50 4056 Basel Switzerland
| | - Beat Ernst
- Institute of Molecular Pharmacy, PharmacenterUniversity of Basel Klingelbergstrasse 50 4056 Basel Switzerland
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Răsădean DM, Sheng B, Dash J, Pantoş GD. Amino-Acid-Derived Naphthalenediimides as Versatile G-Quadruplex Binders. Chemistry 2017; 23:8491-8499. [DOI: 10.1002/chem.201700957] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Indexed: 01/30/2023]
Affiliation(s)
- Dora M. Răsădean
- Department of Chemistry; University of Bath, Claverton Down; Bath BA2 7AY UK
| | - Bin Sheng
- Department of Chemistry; University of Bath, Claverton Down; Bath BA2 7AY UK
| | - Jyotirmayee Dash
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & @B Raja S C Mullick Road Kolkata 700032 India
| | - G. Dan Pantoş
- Department of Chemistry; University of Bath, Claverton Down; Bath BA2 7AY UK
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8
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Kosikova T, Mackenzie H, Philp D. Probing the Limits of Selectivity in a Recognition-Mediated Reaction Network Embedded within a Dynamic Covalent Library. Chemistry 2015; 22:1831-9. [DOI: 10.1002/chem.201503740] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/30/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Tamara Kosikova
- School of Chemistry and EaStCHEM; University of St. Andrews, North Haugh; St. Andrews KY16 9ST UK
| | - Harry Mackenzie
- School of Chemistry and EaStCHEM; University of St. Andrews, North Haugh; St. Andrews KY16 9ST UK
- UCB; 216 Bath Road Slough Berks SL1 3WE UK
| | - Douglas Philp
- School of Chemistry and EaStCHEM; University of St. Andrews, North Haugh; St. Andrews KY16 9ST UK
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9
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Lafuente M, Atcher J, Solà J, Alfonso I. Adaptive Correction from Virtually Complex Dynamic Libraries: The Role of Noncovalent Interactions in Structural Selection and Folding. Chemistry 2015; 21:17002-9. [DOI: 10.1002/chem.201501415] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Indexed: 11/08/2022]
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Atcher J, Moure A, Bujons J, Alfonso I. Salt-Induced Adaptation of a Dynamic Combinatorial Library of Pseudopeptidic Macrocycles: Unraveling the Electrostatic Effects in Mixed Aqueous Media. Chemistry 2015; 21:6869-78. [DOI: 10.1002/chem.201406155] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Indexed: 12/20/2022]
Affiliation(s)
- Joan Atcher
- Department of Biological Chemistry and Molecular Modeling, IQAC-CSIC, Jordi Girona 18-26, 08034, Barcelona (Spain)
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Nowak P, Saggiomo V, Salehian F, Colomb-Delsuc M, Han Y, Otto S. Localized Template-Driven Functionalization of Nanoparticles by Dynamic Combinatorial Chemistry. Angew Chem Int Ed Engl 2015; 54:4192-7. [DOI: 10.1002/anie.201409667] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 01/21/2015] [Indexed: 12/18/2022]
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12
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Nowak P, Saggiomo V, Salehian F, Colomb-Delsuc M, Han Y, Otto S. Localized Template-Driven Functionalization of Nanoparticles by Dynamic Combinatorial Chemistry. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409667] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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13
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Anandhakumar C, Kizaki S, Bando T, Pandian GN, Sugiyama H. Advancing Small-Molecule-Based Chemical Biology with Next-Generation Sequencing Technologies. Chembiochem 2014; 16:20-38. [DOI: 10.1002/cbic.201402556] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Indexed: 12/24/2022]
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Di Antonio M, Biffi G, Mariani A, Raiber EA, Rodriguez R, Balasubramanian S. Selective RNA versus DNA G-quadruplex targeting by in situ click chemistry. Angew Chem Int Ed Engl 2012; 51:11073-8. [PMID: 23038154 PMCID: PMC3652031 DOI: 10.1002/anie.201206281] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Indexed: 12/22/2022]
Abstract
It all clicks into place: A potent telomere-targeting small molecule has been identified by using the copper-free 1,3-dipolar cycloaddition of a series of alkyne and azide building blocks catalyzed by a non-Watson-Crick DNA secondary structure (see picture). This method rapidly identifies, otherwise unanticipated, potent small-molecule probes to selectively target a given RNA or DNA.
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Affiliation(s)
- Marco Di Antonio
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge, CB2 1EW, UK
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15
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Di Antonio M, Biffi G, Mariani A, Raiber EA, Rodriguez R, Balasubramanian S. Selective RNA Versus DNA G-Quadruplex Targeting by In Situ Click Chemistry. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206281] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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16
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Huang Y, Zhao R, Fu Y, Zhang Q, Xiong S, Li L, Zhou R, Liu G, Chen Y. Highly Specific Targeting and Imaging of Live Cancer Cells by Using a Peptide Probe Developed from Rationally Designed Peptides. Chembiochem 2011; 12:1209-15. [DOI: 10.1002/cbic.201100031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Indexed: 02/06/2023]
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17
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Azéma L, Bathany K, Rayner B. 2'-O-Appended polyamines that increase triple-helix-forming oligonucleotide affinity are selected by dynamic combinatorial chemistry. Chembiochem 2011; 11:2513-6. [PMID: 21104718 DOI: 10.1002/cbic.201000538] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Laurent Azéma
- U869, INSERM, 146 rue Léo Saignat, 33076 Bordeaux, France
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Martin AR, Barvik I, Luvino D, Smietana M, Vasseur JJ. Dynamic and Programmable DNA-Templated Boronic Ester Formation. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007170] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Martin AR, Barvik I, Luvino D, Smietana M, Vasseur JJ. Dynamic and programmable DNA-templated boronic ester formation. Angew Chem Int Ed Engl 2011; 50:4193-6. [PMID: 21445950 DOI: 10.1002/anie.201007170] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Revised: 02/14/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Anthony R Martin
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-Universités Montpellier 1 et 2, Place Bataillon, 34095 Montpellier, France
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Dash J, Waller ZAE, Pantoş GD, Balasubramanian S. Synthesis and binding studies of novel diethynyl-pyridine amides with genomic promoter DNA G-quadruplexes. Chemistry 2011; 17:4571-81. [PMID: 21387430 DOI: 10.1002/chem.201003157] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Indexed: 12/19/2022]
Abstract
Herein, we report the design, synthesis and biophysical evaluation of novel 1,2,3-triazole-linked diethynyl-pyridine amides and trisubstituted diethynyl-pyridine amides as promising G-quadruplex binding ligands. We have used a Cu(I)-catalysed azide-alkyne cycloaddition click reaction to prepare the 1,2,3-triazole-linked diethynyl-pyridine amides. The G-quadruplex DNA binding properties of the ligands have been examined by using a Förster resonance energy transfer (FRET) melting assay and surface plasmon resonance (SPR) experiments. The investigated compounds are conformationally flexible, having free rotation around the triple bond, and exhibit enhanced G-quadruplex binding stabilisation and specificity between intramolecular promoter G-quadruplex DNA motifs compared to the first generation of diaryl-ethynyl amides (J. Am. Chem. Soc. 2008, 130, 15950-15956). The ligands show versatility in molecular recognition and promising G-quadruplex discrimination with 2-50-fold selectivity exhibited between different intramolecular promoter G-quadruplexes. Circular dichroism (CD) spectroscopic analysis suggested that at higher concentration these ligands disrupt the c-kit2 G-quadruplex structure. The studies validate the design concept of the 1,3-diethynyl-pyridine-based scaffold and demonstrate that these ligands exhibit not only significant selectivity over duplex DNA but also variation in G-quadruplex interaction properties based on small chemical changes in the scaffold, leading to unprecedented differential recognition of different DNA G-quadruplex sequences.
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Affiliation(s)
- Jyotirmayee Dash
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
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López-Senín P, Gómez-Pinto I, Grandas A, Marchán V. Identification of ligands for the Tau exon 10 splicing regulatory element RNA by using dynamic combinatorial chemistry. Chemistry 2011; 17:1946-53. [PMID: 21274946 DOI: 10.1002/chem.201002065] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Indexed: 01/25/2023]
Abstract
We describe the use of dynamic combinatorial chemistry (DCC) to identify ligands for the stem-loop structure located at the exon 10-5'-intron junction of Tau pre-mRNA, which is involved in the onset of several tauopathies including frontotemporal dementia with Parkinsonism linked to chromosome 17 (FTDP-17). A series of ligands that combine the small aminoglycoside neamine and heteroaromatic moieties (azaquinolone and two acridines) have been identified by using DCC. These compounds effectively bind the stem-loop RNA target (the concentration required for 50% RNA response (EC(50)): 2-58 μM), as determined by fluorescence titration experiments. Importantly, most of them are able to stabilize both the wild-type and the +3 and +14 mutated sequences associated with the development of FTDP-17 without producing a significant change in the overall structure of the RNA (as analyzed by circular dichroism (CD) spectroscopy), which is a key factor for recognition by the splicing regulatory machinery. A good correlation has been found between the affinity of the ligands for the target and their ability to stabilize the RNA secondary structure.
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Affiliation(s)
- Paula López-Senín
- Departament de Química Orgànica and IBUB, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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Caraballo R, Dong H, Ribeiro JP, Jiménez-Barbero J, Ramström O. Direct STD NMR identification of beta-galactosidase inhibitors from a virtual dynamic hemithioacetal system. Angew Chem Int Ed Engl 2010; 49:589-93. [PMID: 20013972 DOI: 10.1002/anie.200903920] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Rémi Caraballo
- Department of Chemistry, KTH-Royal Institute of Technology, Teknikringen 30, 10044 Stockholm, Sweden
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Caraballo RÃ, Dong H, Ribeiro J, Jiménez-Barbero J, Ramström O. Direct STDâ
NMR Identification of β-Galactosidase Inhibitors from a Virtual Dynamic Hemithioacetal System. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200903920] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Scott DE, Dawes GJ, Ando M, Abell C, Ciulli A. A fragment-based approach to probing adenosine recognition sites by using dynamic combinatorial chemistry. Chembiochem 2009; 10:2772-9. [PMID: 19827080 PMCID: PMC4458376 DOI: 10.1002/cbic.200900537] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Indexed: 11/06/2022]
Abstract
A new strategy that combines the concepts of fragment-based drug design and dynamic combinatorial chemistry (DCC) for targeting adenosine recognition sites on enzymes is reported. We demonstrate the use of 5'-deoxy-5'-thioadenosine as a noncovalent anchor fragment in dynamic combinatorial libraries templated by Mycobacterium tuberculosis pantothenate synthetase. A benzyl disulfide derivative was identified upon library analysis by HPLC. Structural and binding studies of protein-ligand complexes by X-ray crystallography and isothermal titration calorimetry informed the subsequent optimisation of the DCC hit into a disulfide containing the novel meta-nitrobenzyl fragment that targets the pantoate binding site of pantothenate synthetase. Given the prevalence of adenosine-recognition motifs in enzymes, our results provide a proof-of-concept for using this strategy to probe adjacent pockets for a range of adenosine binding enzymes, including other related adenylate-forming ligases, kinases, and ATPases, as well as NAD(P)(H), CoA and FAD(H2) binding proteins.
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Affiliation(s)
- Duncan E. Scott
- University Chemical Laboratory, University of Cambridge Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Gwen J. Dawes
- University Chemical Laboratory, University of Cambridge Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Michiyo Ando
- University Chemical Laboratory, University of Cambridge Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Chris Abell
- University Chemical Laboratory, University of Cambridge Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Alessio Ciulli
- University Chemical Laboratory, University of Cambridge Lensfield Road, Cambridge, CB2 1EW (UK)
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Kong DM, Ma YE, Wu J, Shen HX. Discrimination of G-quadruplexes from duplex and single-stranded DNAs with fluorescence and energy-transfer fluorescence spectra of crystal violet. Chemistry 2009; 15:901-9. [PMID: 19053101 DOI: 10.1002/chem.200801441] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
G-rich nucleic acid sequences with the potential to form G-quadruplex structures are common in biologically important regions. Most of these sequences are present with their complementary strands, so the development of a sensitive biosensor to distinguish G-quadruplex and duplex structures and to determine the competitive ability of quadruplex to duplex structures has received a great deal of attention. In this work, the interactions between two triphenylmethane dyes (malachite green (MG) and crystal violet (CV)) and G-quadruplex, duplex, or single-stranded DNAs were studied by fluorescence spectroscopy and energy-transfer fluorescence spectroscopy. Good discrimination between quadruplexes and duplex or single-stranded DNAs can be achieved by using the fluorescence spectrum of CV or the energy-transfer fluorescence spectra of CV and MG. In addition, by using energy-transfer fluorescence titrations of CV with G-quadruplexes, the binding-stoichiometry ratios of CV to G-quadruplexes can be determined. By using the fluorescence titrations of G-quadruplex-CV complexes with C-rich complementary strands, the fraction of G-rich oligonucleotide that engages in G-quadruplex structures in the presence of the complementary sequence can be measured. This study may provide a simple method for discrimination between quadruplexes and duplex or single-stranded DNAs and for measuring G-quadruplex percentages in the presence of the complementary C-rich sequences.
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Affiliation(s)
- De-Ming Kong
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Nankai University, Tianjin, China.
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Gros J, Guédin A, Mergny JL, Lacroix L. G-Quadruplex formation interferes with P1 helix formation in the RNA component of telomerase hTERC. Chembiochem 2009; 9:2075-9. [PMID: 18683270 DOI: 10.1002/cbic.200800300] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Julien Gros
- INSERM, U565, Muséum National d'Histoire Naturelle (MNHN), USM 503-CNRS UMR 5153, "Acides Nucleiques: Dynamique, Ciblage et Fonctions Biologiques", 57 rue Cuvier, Case Postale 26, 75231 Paris cedex 05, France
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Henn A, Joachimi A, Gonçalves DPN, Monchaud D, Teulade-Fichou MP, Sanders JKM, Hartig JS. Inhibition of dicing of guanosine-rich shRNAs by quadruplex-binding compounds. Chembiochem 2009; 9:2722-9. [PMID: 18924215 DOI: 10.1002/cbic.200800271] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
RNA interference is triggered by small hairpin precursors that are processed by the endonuclease dicer to yield active species such as siRNAs and miRNAs. To regulate the RNAi-mediated suppression of gene expression, we imagined a strategy that relies on the sequence-specific inhibition of shRNA precursor processing by immediate RNA-small molecule interactions. Here, we present a first step in this direction by augmenting shRNAs with guanosine-rich sequences that are prone to fold into four-stranded structures. The addition of small molecules that selectively bind to such quadruplex sequences should allow for the specific inhibition of dicing of shRNAs that contain suitable G-rich elements. In an attempt to find compounds that protect against dicer processing, we have examined the effects of quadruplex-binding compounds on the dicer processing of shRNAs containing G-quadruplexes. Although a variety of small molecules that are known to bind to quadruplexes inhibited in vitro dicing of shRNAs, only two substance classes, namely certain porphyrazines and bisquinolinium compounds, showed selective inhibition of G-rich shRNAs compared to control sequences lacking guanine-rich elements. The G-rich shRNAs displayed a potent knockdown of gene expression in mammalian cell culture, but the effect was not influenced by addition of the respective quadruplex-binding compounds.
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Affiliation(s)
- Anja Henn
- Department of Chemistry and Konstanz Research School of Chemical Biology (KoRS-CB), University of Konstanz, Universitätsstrasse 10, 78457 Konstanz, Germany
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Nielsen MC, Ulven T. Selective Extraction of G-Quadruplex Ligands from a Rationally Designed Scaffold-Based Dynamic Combinatorial Library. Chemistry 2008; 14:9487-90. [DOI: 10.1002/chem.200801109] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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