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Ronzetti MH, Baljinnyam B, Itkin Z, Jain S, Rai G, Zakharov AV, Pal U, Simeonov A. Application of temperature-responsive HIS-tag fluorophores to differential scanning fluorimetry screening of small molecule libraries. Front Pharmacol 2022; 13:1040039. [PMID: 36506591 PMCID: PMC9729254 DOI: 10.3389/fphar.2022.1040039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2022] Open
Abstract
Differential scanning fluorimetry is a rapid and economical biophysical technique used to monitor perturbations to protein structure during a thermal gradient, most often by detecting protein unfolding events through an environment-sensitive fluorophore. By employing an NTA-complexed fluorophore that is sensitive to nearby structural changes in histidine-tagged protein, a robust and sensitive differential scanning fluorimetry (DSF) assay is established with the specificity of an affinity tag-based system. We developed, optimized, and miniaturized this HIS-tag DSF assay (HIS-DSF) into a 1536-well high-throughput biophysical platform using the Borrelial high temperature requirement A protease (BbHtrA) as a proof of concept for the workflow. A production run of the BbHtrA HIS-DSF assay showed a tight negative control group distribution of Tm values with an average coefficient of variation of 0.51% and median coefficient of variation of compound Tm of 0.26%. The HIS-DSF platform will provide an additional assay platform for future drug discovery campaigns with applications in buffer screening and optimization, target engagement screening, and other biophysical assay efforts.
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Affiliation(s)
- Michael H. Ronzetti
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States,Department of Veterinary Medicine, College of Agriculture and Natural Resources, University of Maryland, College Park, MD, United States
| | - Bolormaa Baljinnyam
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States,*Correspondence: Bolormaa Baljinnyam, ; Anton Simeonov,
| | - Zina Itkin
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Sankalp Jain
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Ganesha Rai
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Alexey V. Zakharov
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States
| | - Utpal Pal
- Department of Veterinary Medicine, College of Agriculture and Natural Resources, University of Maryland, College Park, MD, United States
| | - Anton Simeonov
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States,*Correspondence: Bolormaa Baljinnyam, ; Anton Simeonov,
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Sharonova T, Zhmurov P, Kalinin S, Nocentini A, Angeli A, Ferraroni M, Korsakov M, Supuran CT, Krasavin M. Diversely substituted sulfamides for fragment-based drug discovery of carbonic anhydrase inhibitors: synthesis and inhibitory profile. J Enzyme Inhib Med Chem 2022; 37:857-865. [PMID: 35296197 PMCID: PMC8933014 DOI: 10.1080/14756366.2022.2051023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
A series of sulfamide fragments has been synthesised and investigated for human carbonic anhydrase inhibition. One of the fragments showing greater selectivity for cancer-related isoforms hCA IX and XII was co-crystalized with hCA II showing significant potential for fragment periphery evolution via fragment growth and linking. These opportunities will be identified in the future via the screening of this fragment structure for co-operative carbonic anhydrase binding with other structurally diverse fragments.[Figure: see text].
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Affiliation(s)
- Tatiana Sharonova
- Institute of Chemistry, Saint Petersburg State University, Saint Petersburg, Russia
| | - Petr Zhmurov
- Institute of Chemistry, Saint Petersburg State University, Saint Petersburg, Russia
| | - Stanislav Kalinin
- Institute of Chemistry, Saint Petersburg State University, Saint Petersburg, Russia
| | - Alessio Nocentini
- Neurofarba Department, Universita Degli Studi di Firenze, Florence, Italy
| | - Andrea Angeli
- Neurofarba Department, Universita Degli Studi di Firenze, Florence, Italy
| | - Marta Ferraroni
- Neurofarba Department, Universita Degli Studi di Firenze, Florence, Italy
| | - Mikhail Korsakov
- Pharmaceutical Technology Transfer Center, Ushinsky Yaroslavl State Pedagogical University, Yaroslavl, Russia
| | - Claudiu T Supuran
- Neurofarba Department, Universita Degli Studi di Firenze, Florence, Italy
| | - Mikhail Krasavin
- Institute of Chemistry, Saint Petersburg State University, Saint Petersburg, Russia
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Shao H, Oltion K, Wu T, Gestwicki JE. Differential scanning fluorimetry (DSF) screen to identify inhibitors of Hsp60 protein-protein interactions. Org Biomol Chem 2021; 18:4157-4163. [PMID: 32458889 DOI: 10.1039/d0ob00928h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
There are relatively few methods available for discovering inhibitors of the protein-protein interactions (PPIs) that hold together homo-oligomers. We envisioned that Differential Scanning Fluorimetry (DSF) might be a versatile way to discover this type of inhibitor because oligomers are often more thermally stable than monomers. Using the homo-heptameric chaperonin, Hsp60, as a model, we screened ∼5000 diverse compounds in 384-well plates by DSF, revealing molecules that partially inhibited oligomerization. Because DSF does not require protein labeling or structural information, we propose that it could be a versatile way to uncover PPI inhibitors.
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Affiliation(s)
- Hao Shao
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA.
| | - Keely Oltion
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA.
| | - Taia Wu
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA.
| | - Jason E Gestwicki
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA.
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Brichet J, Arancibia R, Berrino E, Supuran CT. Bioorganometallic derivatives of 4-hydrazino-benzenesulphonamide as carbonic anhydrase inhibitors: synthesis, characterisation and biological evaluation. J Enzyme Inhib Med Chem 2020; 35:622-628. [PMID: 32037900 PMCID: PMC7034112 DOI: 10.1080/14756366.2020.1724995] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 01/27/2020] [Indexed: 01/28/2023] Open
Abstract
A series of bio-organometallic-hydrazones of the general formula [{(η5-C5H4)-C(R)=N-N(H)-C6H4-4-SO2NH2}]MLn(MLn = Re(CO)3, Mn(CO)3, FeCp; R=H, CH3) were prepared by reaction of formyl/acetyl organometallic precursors with 4-hydrazino-benzenesulphonamide. All compounds were characterized by conventional spectroscopic techniques (infra-red, 1H and 13C NMR, mass spectrometry and elemental analysis). Biological evaluation as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors agents was carried out using four human/h) isoforms, hCA I, II, IX and XII. The cytosolic isoforms hCA I and II were effectively inhibited by almost all derivatives with inhibition constants of 1.7-22.4 nM. Similar effects were observed for the tumour-associated transmembrane isoform hCA XII (KIs of 1.9-24.4 nM). hCA IX was less sensitive to inhibition with these compounds. The presence of bio-organometallic or metallo-carbonyl moieties in the molecules of these CAIs makes them amenable for interesting pharmacologic applications, for example for compounds with CO donating properties.
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Affiliation(s)
- Jeremie Brichet
- Laboratorio de Química Inorgánica y Organometálica, Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Rodrigo Arancibia
- Laboratorio de Química Inorgánica y Organometálica, Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Emanuela Berrino
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Firenze, Italy
| | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Firenze, Italy
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