1
|
Angeli A. Bacterial γ-carbonic anhydrases. Enzymes 2024; 55:93-120. [PMID: 39223000 DOI: 10.1016/bs.enz.2024.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Carbonic anhydrases (CAs) are a ubiquitous family of zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide to bicarbonate and protons, playing pivotal roles in a variety of biological processes including respiration, calcification, acid-base balance, and CO2 fixation. Recent studies have expanded the understanding of CAs, particularly the γ-class from diverse biological sources such as pathogenic bacteria, extremophiles, and halophiles, revealing their unique structural adaptations and functional mechanisms that enable operation under extreme environmental conditions. This chapter discusses the comprehensive catalytic mechanism and structural insights from X-ray crystallography studies, highlighting the molecular adaptations that confer stability and activity to these enzymes in harsh environments. It also explores the modulation mechanism of these enzymes, detailing how different modulators interact with the active site of γ-CAs. Comparative analyzes with other CA classes elucidate the evolutionary trajectories and functional diversifications of these enzymes. The synthesis of this knowledge not only sheds light on the fundamental aspects of CA biology but also opens new avenues for therapeutic and industrial applications, particularly in designing targeted inhibitors for pathogenic bacteria and developing biocatalysts for industrial processes under extreme conditions. The continuous advancement in structural biology promises further insights into this enzyme family, potentially leading to novel applications in medical and environmental biotechnology.
Collapse
Affiliation(s)
- Andrea Angeli
- Neurofarba Department, University of Florence, Sesto Fiorentino, Florence, Italy.
| |
Collapse
|
2
|
Supuran CT. Challenges for developing bacterial CA inhibitors as novel antibiotics. Enzymes 2024; 55:383-411. [PMID: 39222998 DOI: 10.1016/bs.enz.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Acetazolamide, methazolamide, ethoxzolamide and dorzolamide, classical sulfonamide carbonic anhydrase (CA) inhibitors (CAIs) designed for targeting human enzymes, were also shown to effectively inhibit bacterial CAs and were proposed for repurposing as antibacterial agents against several infective agents. CAs belonging to the α-, β- and/or γ-classes from pathogens such as Helicobacter pylori, Neisseria gonorrhoeae, vacomycin resistant enterococci (VRE), Vibrio cholerae, Mycobacterium tuberculosis, Pseudomonas aeruginosa and other bacteria were considered as drug targets for which several classes of potent inhibitors have been developed. Treatment of some of these pathogens with various classes of such CAIs led to an impairment of the bacterial growth, reduced virulence and for drug resistant bacteria, a resensitization to clinically used antibiotics. Here I will discuss the strategies and challenges for obtaining CAIs with enhanced selectivity for inhibiting bacterial versus human enzymes, which may constitute an important weapon for addressing the drug resistance to β-lactams and other clinically used antibiotics.
Collapse
Affiliation(s)
- Claudiu T Supuran
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Florence, Italy.
| |
Collapse
|
3
|
Supuran CT. A simple yet multifaceted 90 years old, evergreen enzyme: Carbonic anhydrase, its inhibition and activation. Bioorg Med Chem Lett 2023; 93:129411. [PMID: 37507055 DOI: 10.1016/j.bmcl.2023.129411] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
Advances in the carbonic anhydrase (CA, EC 4.2.1.1) research over the last three decades are presented, with an emphasis on the deciphering of the activation mechanism, the development of isoform-selective inhibitors/ activators by the tail approach and their applications in the management of obesity, hypoxic tumors, neurological conditions, and as antiinfectives.
Collapse
Affiliation(s)
- Claudiu T Supuran
- Neurofarba Department, University of Florence, Section of Pharmaceutical Sciences, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| |
Collapse
|
4
|
Supuran CT. An overview of novel antimicrobial carbonic anhydrase inhibitors. Expert Opin Ther Targets 2023; 27:897-910. [PMID: 37747071 DOI: 10.1080/14728222.2023.2263914] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/24/2023] [Indexed: 09/26/2023]
Abstract
INTRODUCTION Four different genetic families of the enzyme carbonic anhydrase (CA, EC 4.2.1.1) are present in bacteria, α-, β-, γ- and ι-CAs. They play relevant functions related to CO2, HCO3-/H+ ions homeostasis, being involved in metabolic biosynthetic pathways, pH regulation, and represent virulence and survival factors for bacteria in various niches. Bacterial CAs started to be considered druggable targets in the last decade, as their inhibition impairs survival, growth, and virulence of these pathogens. AREAS COVERED Significant advances were registered in the last years for designing effective inhibitors of sulfonamide type for Helicobacter pylori α-CA, Neisseria gonorrhoeae α-CA, vacomycin-resistant enterococci (VRE) α- and γ-CAs, for which the in vivo validation has also been achieved. MIC-s in the range of 0.25-4.0 µg/mL for wild type and drug resistant N. gonorrhoeae strains, and of 0.007-2.0 µg/mL for VRE were observed for some 1,3,4-thiadiazole-2-sulfonamides, and acetazolamide was effective in gut decolonization from VRE. EXPERT OPINION Targeting bacterial CAs from other pathogens, among which Vibrio cholerae, Mycobacterium tuberculosis, Brucella suis, Salmonella enterica serovar Typhimurium, Legionella pneumophila, Porphyromonas gingivalis, Clostridium perfringens, Streptococcus mutans, Burkholderia pseudomallei, Francisella tularensis, Escherichia coli, Mammaliicoccus (Staphylococcus) sciuri, Pseudomonas aeruginosa, may lead to novel antibacterials devoid of drug resistance problems.
Collapse
Affiliation(s)
- Claudiu T Supuran
- Department of NEUROFARBA, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Firenze, Italy
| |
Collapse
|
5
|
Amine- and Amino Acid-Based Compounds as Carbonic Anhydrase Activators. Molecules 2021; 26:molecules26237331. [PMID: 34885917 PMCID: PMC8659172 DOI: 10.3390/molecules26237331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 12/01/2021] [Indexed: 02/01/2023] Open
Abstract
After being rather neglected as a research field in the past, carbonic anhydrase activators (CAAs) were undoubtedly demonstrated to be useful in diverse pharmaceutical and industrial applications. They also improved the knowledge of the requirements to selectively interact with a CA isoform over the others and confirmed the catalytic mechanism of this class of compounds. Amino acid and amine derivatives were the most explored in in vitro, in vivo and crystallographic studies as CAAs. Most of them were able to activate human or non-human CA isoforms in the nanomolar range, being proposed as therapeutic and industrial tools. Some isoforms are better activated by amino acids than amines derivatives and the stereochemistry may exert a role. Finally, non-human CAs have been very recently tested for activation studies, paving the way to innovative industrial and environmental applications.
Collapse
|
6
|
Amedei A, Capasso C, Nannini G, Supuran CT. Microbiota, Bacterial Carbonic Anhydrases, and Modulators of Their Activity: Links to Human Diseases? Mediators Inflamm 2021; 2021:6926082. [PMID: 34803517 PMCID: PMC8601860 DOI: 10.1155/2021/6926082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022] Open
Abstract
The involvement of the human microbiome is crucial for different host functions such as protection, metabolism, reproduction, and especially immunity. However, both endogenous and exogenous factors can affect the balance of the microbiota, creating a state of dysbiosis, which can start various gastrointestinal or systemic diseases. The challenge of future medicine is to remodel the intestinal microbiota to bring it back to healthy equilibrium (eubiosis) and, thus, counteract its negative role in the diseases' onset. The shaping of the microbiota is currently practiced in different ways ranging from diet (or use of prebiotics, probiotics, and synbiotics) to phage therapy and antibiotics, including microbiota fecal transplantation. Furthermore, because microbiota modulation is a capillary process, and because many microbiota bacteria (both beneficial and pathogenic) have carbonic anhydrases (specifically the four classes α, β, γ, and ι), we believe that the use of CA inhibitors and activators can open up new therapeutic strategies for many diseases associated with microbial dysbiosis, such as the various gastrointestinal disorders and the same colorectal cancer.
Collapse
Affiliation(s)
- Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
- SOD of Interdisciplinary Internal Medicine, Azienda Ospedaliera Universitaria Careggi (AOUC), 50134 Florence, Italy
| | - Clemente Capasso
- CNR, Institute of Biosciences and Bioresources, 80131 Napoli, Italy
| | - Giulia Nannini
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | | |
Collapse
|
7
|
Angeli A, Urbański LJ, Hytönen VP, Parkkila S, Supuran CT. Activation of the β-carbonic anhydrase from the protozoan pathogen Trichomonas vaginalis with amines and amino acids. J Enzyme Inhib Med Chem 2021; 36:758-763. [PMID: 33715570 PMCID: PMC7952076 DOI: 10.1080/14756366.2021.1897802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
We report the first activation study of the β-class carbonic anhydrase (CA, EC 4.2.1.1) encoded in the genome of the protozoan pathogen Trichomonas vaginalis, TvaCA1. Among 24 amino acid and amine activators investigated, derivatives incorporating a second carboxylic moiety, such as L-Asp, L- and D-Glu, were devoid of activating effects up to concentrations of 50 µM within the assay system, whereas the corresponding compounds with a CONH2 moiety, i.e. L-Gln and L-Asn showed modest activating effects, with activation constants in the range of 26.9 − 32.5 µM. Moderate activation was observed with L- and D-DOPA, histamine, dopamine, serotonin, (2-Aminoethyl)pyridine/piperazine and morpholine (KA‘s ranging between 8.3 and 14.5 µM), while the best activators were L-and D-Trp, L-and D-Tyr and 4-amino-Phe, which showed KA‘s ranging between 3.0 and 5.1 µM. Understanding in detail the activation mechanism of β-CAs may be relevant for the design of enzyme activity modulators with potential clinical significance.
Collapse
Affiliation(s)
- Andrea Angeli
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy
| | - Linda J Urbański
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Vesa P Hytönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd, Tampere, Finland
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd, Tampere, Finland
| | - Claudiu T Supuran
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Firenze, Italy
| |
Collapse
|
8
|
Angeli A, Prete SD, Ghobril C, Hitce J, Clavaud C, Marrat X, Donald WA, Capasso C, Supuran CT. Activation studies of the β-carbonic anhydrases from Malassezia restricta with amines and amino acids. J Enzyme Inhib Med Chem 2020; 35:824-830. [PMID: 32216477 PMCID: PMC7170391 DOI: 10.1080/14756366.2020.1743284] [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: 02/16/2020] [Revised: 03/05/2020] [Accepted: 03/10/2020] [Indexed: 02/06/2023] Open
Abstract
The β-carbonic anhydrase (CA, EC 4.2.1.1) from the genome of the opportunistic pathogen Malassezia restricta (MreCA), which was recently cloned and characterised, herein has been investigated for enzymatic activation by a panel of amines and amino acids. Of the 24 compounds tested in this study, the most effective MreCA activators were L-adrenaline (KA of 15 nM), 2-aminoethyl-piperazine/morpholine (KAs of 0.25-0.33 µM), histamine, L-4-amino-phenylalanine, D-Phe, L-/D-DOPA, and L-/D-Trp (KAs of 0.32 - 0.90 µM). The least effective activators were L-/D-Tyr, L-Asp, L-/D-Glu, and L-His, with activation constants ranging between 4.04 and 12.8 µM. As MreCA is involved in dandruff and seborrhoeic dermatitis, these results are of interest to identify modulators of the activity of enzymes involved in the metabolic processes of such fungi.
Collapse
Affiliation(s)
- Andrea Angeli
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy
| | - Sonia Del Prete
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | | | - Julien Hitce
- L’Oréal Research and Innovation, Aulnay-sous-Bois, France
| | - Cécile Clavaud
- L’Oréal Research and Innovation, Aulnay-sous-Bois, France
| | - Xavier Marrat
- L’Oréal Research and Innovation, Aulnay-sous-Bois, France
| | - William A. Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales, Australia
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy
- School of Chemistry, University of New South Wales, Sydney, New South Wales, Australia
| |
Collapse
|
9
|
Nocentini A, Del Prete S, Mastrolorenzo MD, Donald WA, Capasso C, Supuran CT. Activation studies of the β-carbonic anhydrases from Escherichia coli with amino acids and amines. J Enzyme Inhib Med Chem 2020; 35:1379-1386. [PMID: 32576029 PMCID: PMC7748406 DOI: 10.1080/14756366.2020.1781845] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/22/2020] [Accepted: 06/05/2020] [Indexed: 11/29/2022] Open
Abstract
A β-carbonic anhydrase (CA, EC 4.2.1.1) from the widespread bacterium Escherichia coli (EcoCAβ), encoded by the CynT2 gene, has been investigated for its catalytic properties and enzymatic activation by a panel of amino acids and amines. EcoCAβ showed a significant catalytic activity for the hydration of CO2 to bicarbonate and a proton, with a kinetic constant kcat of 5.3 × 105 s- and a Michaelis-Menten constant KM of 12.9 mM. The most effective EcoCAβ activators were L- and D-DOPA, L-Tyr, 4-amino-Phe, serotonin and L-adrenaline, with KAs from 2.76 to 10.7 µM. L-His, 2-pyridyl-methylamine, L-Asn and L-Gln were relatively weak activators (KAs from 36.0 to 49.5 µM). D-His, L- and D-Phe, L- and D-Trp, D-Tyr, histamine, dopamine, 2-(aminoethyl)pyridine/piperazine/morpholine, L-Asp, L- and D-Glu have KAs from 11.3 to 23.7 µM. Endogenous CA activators may play a role in bacterial virulence and colonisation of the host.
Collapse
Affiliation(s)
- Alessio Nocentini
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Sesto Fiorentino, Italy
| | - Sonia Del Prete
- Department of Biology, Agriculture and Food sciences, CNR, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | - Margaret D. Mastrolorenzo
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Sesto Fiorentino, Italy
- San Diego (UCSD), University of California, San Diego, CA, USA
| | - William A. Donald
- School of Chemistry, University of New South Wales, Sydney, Australia
| | - Clemente Capasso
- Department of Biology, Agriculture and Food sciences, CNR, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | - Claudiu T. Supuran
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Sesto Fiorentino, Italy
- School of Chemistry, University of New South Wales, Sydney, Australia
| |
Collapse
|
10
|
Akocak S, Supuran CT. Activation of α-, β-, γ- δ-, ζ- and η- class of carbonic anhydrases with amines and amino acids: a review. J Enzyme Inhib Med Chem 2019; 34:1652-1659. [PMID: 31530034 PMCID: PMC6758604 DOI: 10.1080/14756366.2019.1664501] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 12/14/2022] Open
Abstract
Eight genetically distinct carbonic anhydrase (EC 4.2.1.1) enzyme families (α-, β-, γ- δ-, ζ-, η-, θ- and ι-CAs) were described to date. On the other hand, 16 mammalian α-CA isoforms are known to be involved in many diseases such as glaucoma, edema, epilepsy, obesity, hypoxic tumors, neuropathic pain, arthritis, neurodegeneration, etc. Although CA inhibitors were investigated for the management of a variety of such disorders, the activators just started to be investigated in detail for their in vivo effects. This review summarizes the activation profiles of α-, β, γ-, δ-, ζ- and η- CAs from various organisms (animals, fungi, protozoan, bacteria and archaea) with the most investigated classes of activators, the amines and the amino acids.
Collapse
Affiliation(s)
- Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy
| |
Collapse
|
11
|
Angeli A, Del Prete S, Pinteala M, Maier SS, Donald WA, Simionescu BC, Capasso C, Supuran CT. The first activation study of the β-carbonic anhydrases from the pathogenic bacteria Brucella suis and Francisella tularensis with amines and amino acids. J Enzyme Inhib Med Chem 2019; 34:1178-1185. [PMID: 31282230 PMCID: PMC6691884 DOI: 10.1080/14756366.2019.1630617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The activation of the β-class carbonic anhydrases (CAs, EC 4.2.1.1) from the bacteria Brucella suis and Francisella tularensis with amine and amino acids was investigated. BsuCA 1 was sensitive to activation with amino acids and amines, whereas FtuCA was not. The most effective BsuCA 1 activators were L-adrenaline and D-Tyr (KAs of 0.70–0.95 µM). L-His, L-/D-Phe, L-/D-DOPA, L-Trp, L-Tyr, 4-amino-L-Phe, dopamine, 2-pyridyl-methylamine, D-Glu and L-Gln showed activation constants in the range of 0.70–3.21 µM. FtuCA was sensitive to activation with L-Glu (KA of 9.13 µM). Most of the investigated compounds showed a weak activating effect against FtuCA (KAs of 30.5–78.3 µM). Many of the investigated amino acid and amines are present in high concentrations in many tissues in vertebrates, and their role in the pathogenicity of the two bacteria is poorly understood. Our study may bring insights in processes connected with invasion and pathogenic effects of intracellular bacteria.
Collapse
Affiliation(s)
- Andrea Angeli
- a Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Sesto Fiorentino , Italy
| | - Sonia Del Prete
- b Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Mariana Pinteala
- c Centre of Advanced Research in Bionanoconjugates and Biopolymers Department , "Petru Poni" Institute of Macromolecular Chemistry , Iasi , Romania
| | - Stelian S Maier
- c Centre of Advanced Research in Bionanoconjugates and Biopolymers Department , "Petru Poni" Institute of Macromolecular Chemistry , Iasi , Romania.,d Polymers Research Center, Polymeric Release Systems Research Group , "Gheorghe Asachi" Technical University of Iasi , Iasi , Romania
| | - William A Donald
- e School of Chemistry , University of New South Wales , Sydney , Australia
| | - Bogdan C Simionescu
- c Centre of Advanced Research in Bionanoconjugates and Biopolymers Department , "Petru Poni" Institute of Macromolecular Chemistry , Iasi , Romania
| | | | - Claudiu T Supuran
- a Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Sesto Fiorentino , Italy.,e School of Chemistry , University of New South Wales , Sydney , Australia
| |
Collapse
|
12
|
Wang W, Zhang Y, Wang L, Jing Q, Wang X, Xi X, Zhao X, Wang H. Molecular structure of thermostable and zinc-ion-binding γ-class carbonic anhydrases. Biometals 2019; 32:317-328. [PMID: 30895492 DOI: 10.1007/s10534-019-00190-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/18/2019] [Indexed: 12/18/2022]
Abstract
The γ-class carbonic anhydrases (γ-CAs) mainly come from methanogens methane-producing bacteria that grow in hot springs and catalyze the interconversion of carbon dioxide and water to bicarbonate and protons. Here, the γ-CA from Thermus thermophilus HB8 (γ-TtCA) was expressed and purified, its crystal structure was determined at 2.3 Å resolution in space group P1. The asymmetric unit contains two trimers and six catalytic Zn2+. In general, the fold of the protein is similar to those of homologous enzymes from Geobacillus Kaustophilus, Bacillus Cereus, Methanosarcina Thermophila and others. Each monomer comprises a triangular prism-like structure consisting of a left-handed β-helix and a C-terminal α-helix. The catalytic Zn2+ bound to three histidines and a phosphate radical in a tetrahedral fashion. It is located at the interface between the two monomers. Inductively coupled plasma mass spectrometry measurements further suggest that the molar ratio of zinc ions and protein molecules is 1:1. The structure revealed a novel different region situated between the left-handed β-helix and the C-terminal α-helix. Compared to previously reported structures, half of the C-terminal α-helix was replaced with a long loop in this structure. The purified γ-TtCA exhibits no significant carbonic anhydrase activity compared to α-class carbonic anhydrases. This study provides insight into the structural diversity of γ-CAs with potential function for γ-CAs.
Collapse
Affiliation(s)
- Wenming Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
| | - Yao Zhang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China
| | - Lele Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China
| | - Qi Jing
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China
| | - Xiaolu Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China
| | - Xiaoli Xi
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China
| | - Xuan Zhao
- Department of Chemistry, University of Memphis, Memphis, TN, 38152, USA
| | - Hongfei Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
| |
Collapse
|
13
|
Vullo D, Del Prete S, Osman SM, Alasmary FAS, AlOthman Z, Donald WA, Capasso C, Supuran CT. Comparison of the amine/amino acid activation profiles of the β- and γ-carbonic anhydrases from the pathogenic bacterium Burkholderia pseudomallei. J Enzyme Inhib Med Chem 2018; 33:25-30. [PMID: 29098887 PMCID: PMC6009869 DOI: 10.1080/14756366.2017.1387544] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 09/29/2017] [Accepted: 09/29/2017] [Indexed: 01/04/2023] Open
Abstract
The β-class carbonic anhydrase (CA, EC 4.2.1.1) from the pathogenic bacterium Burkholderia pseudomallei, BpsCAβ, that is responsible for the tropical disease melioidosis was investigated for its activation with natural and non-natural amino acids and amines. Previously, the γ-CA from this bacterium has been investigated with the same library of 19 amines/amino acids, which show very potent activating effects on both enzymes. The most effective BpsCAβ activators were L- and D-DOPA, L- and D-Trp, L-Tyr, 4-amino-L-Phe, histamine, dopamine, serotonin, 2-pyridyl-methylamine, 1-(2-aminoethyl)-piperazine and L-adrenaline with KAs of 0.9-27 nM. Less effective activators were D-His, L- and D-Phe, D-Tyr, 2-(2-aminoethyl)pyridine and 4-(2-aminoethyl)-morpholine with KAs of 73 nM-3.42 µM. The activation of CAs from bacteria, such as BpsCAγ/β, has not been considered previously for possible biomedical applications. It would be of interest to perform studies in which bacteria are cultivated in the presence of CA activators, which may contribute to understanding processes connected with the virulence and colonization of the host by pathogenic bacteria.
Collapse
Affiliation(s)
- Daniela Vullo
- Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Università degliStudi di Firenze, Florence, Italy
| | - Sonia Del Prete
- CNR, Istituto di Bioscienze e Biorisorse, Napoli, Italy
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
| | - Sameh M. Osman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Fatmah A. S. Alasmary
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zeid AlOthman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - William A. Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales, Australia
| | | | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
- School of Chemistry, University of New South Wales, Sydney, New South Wales, Australia
| |
Collapse
|
14
|
Angeli A, Del Prete S, Osman SM, Alasmary FAS, AlOthman Z, Donald WA, Capasso C, Supuran CT. Activation studies of the α- and β-carbonic anhydrases from the pathogenic bacterium Vibrio cholerae with amines and amino acids. J Enzyme Inhib Med Chem 2018; 33:227-233. [PMID: 29231751 PMCID: PMC7012002 DOI: 10.1080/14756366.2017.1412316] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 10/27/2022] Open
Abstract
The α- and β-class carbonic anhydrases (CAs, EC 4.2.1.1) from the pathogenic bacterium Vibrio cholerae, VchCAα, and VchCAβ, were investigated for their activation with natural and non-natural amino acids and amines. The most effective VchCAα activators were L-tyrosine, histamine, serotonin, and 4-aminoethyl-morpholine, which had KAs in the range of 8.21-12.0 µM. The most effective VchCAβ activators were D-tyrosine, dopamine, serotonin, 2-pyridyl-methylamine, 2-aminoethylpyridine, and 2-aminoethylpiperazine, which had KAs in the submicromolar - low micromolar range (0.18-1.37 µM). The two bacterial enzymes had very different activation profiles with these compounds, between each other, and in comparison to the human isoforms hCA I and II. Some amines were selective activators of VchCAβ, including 2-pyridylmethylamine (KA of 180 nm for VchCAβ, and more than 20 µM for VchCAα and hCA I/II). The activation of CAs from bacteria, such as VchCAα/β has not been considered previously for possible biomedical applications. It would be of interest to study in more detail the extent that CA activators are implicated in the virulence and colonisation of the host by such pathogenic bacteria, which for Vibrio cholerae, is highly dependent on the bicarbonate concentration and pH in the surrounding tissue.
Collapse
Affiliation(s)
- Andrea Angeli
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
| | - Sonia Del Prete
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
- Istituto di Bioscienze e Biorisorse, CNR, Napoli, Italy
| | - Sameh M. Osman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Fatmah A. S. Alasmary
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zeid AlOthman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - William A. Donald
- School of Chemistry, University of New South Wales, Sydney, Australia
| | | | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- School of Chemistry, University of New South Wales, Sydney, Australia
| |
Collapse
|
15
|
Angeli A, Kuuslahti M, Parkkila S, Supuran CT. Activation studies with amines and amino acids of the α-carbonic anhydrase from the pathogenic protozoan Trypanosoma cruzi. Bioorg Med Chem 2018; 26:4187-4190. [DOI: 10.1016/j.bmc.2018.07.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/04/2018] [Accepted: 07/06/2018] [Indexed: 01/09/2023]
|
16
|
Abstract
INTRODUCTION The hydration/dehydration of CO2 catalyzed by carbonic anhydrases (CAs, EC 4.2.1.1) is a crucial physiological reaction for the survival of all living organisms because it is connected with numerous biosynthetic and biochemical pathways requiring CO2 or HCO3-, such as respiration, photosynthesis, carboxylation reactions, pH homeostasis, secretion of electrolytes, transport of CO2, bicarbonate, etc. AREAS COVERED The bacterial genome encodes CAs belonging to the α-, β-, and γ-CA classes able to ensure the survival and/or satisfying the metabolic needs of the bacteria, as demonstrated by in vivo and in vitro experiments. The discovery of new anti-infectives that target new bacterial pathways, such as those involving CAs, may lead to effective therapies against diseases subject to the antibiotic resistance. This aspect is important in pharmaceutical and biomedical research but received little attention till recently. EXPERT OPINION An overview of the potential use of CAs in biomedical applications, as drug targets, bioindicators, and within artificial organs is presented. The discovery of thermostable bacterial CAs allowed the use of CAs in biotechnological applications, but patents related to the use of bacterial CAs in the development of pharmacological agents are scarce.
Collapse
Affiliation(s)
- Claudiu T Supuran
- a Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Florence , Italy
| | | |
Collapse
|
17
|
Angeli A, Del Prete S, Alasmary FAS, Alqahtani LS, AlOthman Z, Donald WA, Capasso C, Supuran CT. The first activation studies of the η-carbonic anhydrase from the malaria parasite Plasmodium falciparum with amines and amino acids. Bioorg Chem 2018; 80:94-98. [PMID: 29894892 DOI: 10.1016/j.bioorg.2018.06.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/30/2018] [Accepted: 06/01/2018] [Indexed: 02/06/2023]
Abstract
The first activation study of a η-class carbonic anhydrase (CAs, EC 4.2.1.1) is reported. A panel of 24 natural and non-natural amino acids and amines was used to explore the activation profile of Plasmodium falciparum CA (PfACA). The most effective activators belonged to the amino acid chemotype, with d-Glu, l-Asp, l-/d-Phe and l-/d-DOPA possessing activation constant in the range of 82 nM-0.75 µM, whereas l-/d-His, l-Tyr, 4-amino-l-Phe and l-Gln were slightly less effective (KA in the range of 1.00-2.51 µM. The only amine with submicromolar activating properties was 1-(2-aminoethyl-piperazine) with a KA of 0.71 µM, whereas histamine, dopamine and serotonin showed KA ranging between 7.18 and 9.97 µM. As CA activators have scarcely been investigated for their interaction with protozoan CAs, this study may be relevant for an improved understanding of the role of this enzyme in the life cycle of the malaria producing organisms belonging to the genus Plasmodium.
Collapse
Affiliation(s)
- Andrea Angeli
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
| | - Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Fatmah A S Alasmary
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Linah S Alqahtani
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Department of Chemistry, King Faisal University, Alahsa, Saudi Arabia
| | - Zeid AlOthman
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - William A Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy; Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia.
| |
Collapse
|
18
|
Angeli A, Alasmary FAS, Del Prete S, Osman SM, AlOthman Z, Donald WA, Capasso C, Supuran CT. The first activation study of a δ-carbonic anhydrase: TweCAδ from the diatom Thalassiosira weissflogii is effectively activated by amines and amino acids. J Enzyme Inhib Med Chem 2018. [PMID: 29536765 PMCID: PMC6009927 DOI: 10.1080/14756366.2018.1447570] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The activation of the δ-class carbonic anhydrase (CAs, EC 4.2.1.1) from the diatom Thalassiosira weissflogii (TweCAδ) was investigated using a panel of natural and non-natural amino acids and amines. The most effective activator of TweCAδ was d-Tyr (KA of 51 nM), whereas several other amino acids and amines, such as L-His, L-Trp, d-Trp, dopamine and serotonin were submicromolar activators (KAs from 0.51 to 0.93 µM). The most ineffective activator of TweCAδ was 4-amino-l-Phe (18.9 µM), whereas d-His, l-/d-Phe, l-/d-DOPA, l-Tyr, histamine, some pyridyl-alkylamines, l-adrenaline and aminoethyl-piperazine/morpholine were moderately potent activators (KAs from 1.34 to 8.16 µM). For any δ-CA, there are no data on the crystal structure, homology modelling and the amino acid residues that are responsible for proton transfer to the active site are currently unknown making it challenging to provide a detailed rational for these findings. However, these data provide further evidence that this class of underexplored CA deserves more attention.
Collapse
Affiliation(s)
- Andrea Angeli
- a Department of Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Florence , Italy
| | - Fatmah A S Alasmary
- b Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Sonia Del Prete
- a Department of Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Florence , Italy.,c Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Sameh M Osman
- b Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Zeid AlOthman
- b Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - William A Donald
- d School of Chemistry , University of New South Wales , Sydney , Australia
| | | | - Claudiu T Supuran
- a Department of Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Florence , Italy.,d School of Chemistry , University of New South Wales , Sydney , Australia
| |
Collapse
|
19
|
Angeli A, Donald WA, Parkkila S, Supuran CT. Activation studies with amines and amino acids of the β-carbonic anhydrase from the pathogenic protozoan Leishmania donovani chagasi. Bioorg Chem 2018; 78:406-410. [PMID: 29689418 DOI: 10.1016/j.bioorg.2018.04.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/01/2018] [Accepted: 04/13/2018] [Indexed: 10/17/2022]
Abstract
The activation of a β-class carbonic anhydrase (CAs, EC 4.2.1.1) from Leishmania donovani chagasi (LdcCA) was investigated using a panel of natural and non-natural amino acids and amines. The most effective activators belonged to the amine class, with histamine, dopamine, serotonin, 2-pyridyl-methylamine and 4-(2-aminoethyl)-morpholine with activation constants in the range of 0.23-0.94 µM. In addition, 2-(2-aminoethyl)pyridine and 1-(aminoethyl)-piperazine were even more effective activators (KAs of 9-12 nM). Amino acids such as L-/D-His, L-/D-Phe, L-/D-DOPA, L-/D-Trp and L-/D-Tyr were slightly less effective activators compared to the amines, but showed activation constants in the low micromolar range (1.27-9.16 µM). Many of the investigated activators are autacoids that are present in rather high concentrations in different tissues of the host mammals infected by these parasites. As CA activators have not yet been investigated for protozoan CAs, this study may be relevant for an improved understanding of the role of this enzyme in the life cycle of Leishmania.
Collapse
Affiliation(s)
- Andrea Angeli
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
| | - William A Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Seppo Parkkila
- Faculty of Medicine and Life Sciences, University of Tampere, Fimlab Ltd., Tampere University Hospital, 33520 Tampere, Finland
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy; School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia.
| |
Collapse
|
20
|
The γ-carbonic anhydrase from the pathogenic bacterium Vibrio cholerae is potently activated by amines and amino acids. Bioorg Chem 2018; 77:1-5. [PMID: 29316507 DOI: 10.1016/j.bioorg.2018.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/01/2017] [Accepted: 01/02/2018] [Indexed: 11/24/2022]
Abstract
The γ-class carbonic anhydrase (CAs, EC 4.2.1.1) from the pathogenic bacterium Vibrio cholerae, VchCAγ, was investigated for its activation with a panel of natural and non-natural amino acids and amines. The enzyme was effectively activated by l-tryptophan, 1-(2-minoethyl)-piperazine and 4-(2-aminoethyl)-morpholine, in the low nanomolar range (KAs 8-71 nM). In contrast, l-/d-Phe, l-/d-DOPA, d-Trp, l-/d-Tyr, 4-amino-l-Phe, histamine, dopamine, serotonin, some pyridyl-alkylamines, as well as l-adrenaline were submicromolar activators (KAs between 0.10 and 0.73 µM). l- and d-His were the least effective VchCAγ activators (KAs of 1.01-14.2 µM). The activation of CAs from bacteria have not been considered to date for possible biomedical applications. It would be of interest to study in more details the role of CA activators in processes connected with the virulence and colonization of the host by pathogenic bacteria, such as Vibrio cholerae, which is highly dependent on the concentration of bicarbonate in tissues.
Collapse
|
21
|
Perfetto R, Del Prete S, Vullo D, Sansone G, Barone C, Rossi M, Supuran CT, Capasso C. Biochemical characterization of the native α-carbonic anhydrase purified from the mantle of the Mediterranean mussel, Mytilus galloprovincialis. J Enzyme Inhib Med Chem 2017; 32:632-639. [PMID: 28229634 PMCID: PMC6010126 DOI: 10.1080/14756366.2017.1284069] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 01/16/2017] [Indexed: 01/18/2023] Open
Abstract
A α-carbonic anhydrase (CA, EC 4.2.1.1) has been purified and characterized biochemically from the mollusk Mytilus galloprovincialis. As in most mollusks, this α-CA is involved in the biomineralization processes leading to the precipitation of calcium carbonate in the mussel shell. The new enzyme had a molecular weight of 50 kDa, which is roughly two times higher than that of a monomeric α-class enzyme. Thus, Mytilus galloprovincialis α-CA is either a dimer, or similar to the Tridacna gigas CA described earlier, may have two different CA domains in its polypeptide chain. The Mytilus galloprovincialis α-CA sequence contained the three His residues acting as zinc ligands and the gate-keeper residues present in all α-CAs (Glu106-Thr199), but had a Lys in position 64 and not a His as proton shuttling residue, being thus similar to the human isoform hCA III. This probably explains the relatively low catalytic activity of Mytilus galloprovincialis α-CA, with the following kinetic parameters for the CO2 hydration reaction: kcat = 4.1 × 105 s-1 and kcat/Km of 3.6 × 107 M-1 × s-1. The enzyme activity was poorly inhibited by the sulfonamide acetazolamide, with a KI of 380 nM. This study is one of the few describing in detail the biochemical characterization of a molluskan CA and may be useful for understanding in detail the phylogeny of these enzymes, their role in biocalcification processes and their potential use in the biomimetic capture of the CO2.
Collapse
Affiliation(s)
- Rosa Perfetto
- Istituto di Bioscienze e Biorisorse, CNR, Napoli, Italy
| | - Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Napoli, Italy
- Dipartimento Neurofarba, Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico, Sesto Fiorentino, Florence, Italy
| | - Daniela Vullo
- Dipartimento Neurofarba, Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico, Sesto Fiorentino, Florence, Italy
| | - Giovanni Sansone
- Dipartimento di Biologia, Università degli Studi di Napoli, Federico II, Napoli, Italy
| | - Carmela Barone
- Dipartimento di Agraria, Università degli Studi di Napoli, Federico II, Portici (Napoli), Italy
| | - Mosè Rossi
- Istituto di Bioscienze e Biorisorse, CNR, Napoli, Italy
| | - Claudiu T. Supuran
- Dipartimento Neurofarba, Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico, Sesto Fiorentino, Florence, Italy
| | | |
Collapse
|
22
|
An Overview of the Bacterial Carbonic Anhydrases. Metabolites 2017; 7:metabo7040056. [PMID: 29137134 PMCID: PMC5746736 DOI: 10.3390/metabo7040056] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 11/08/2017] [Accepted: 11/08/2017] [Indexed: 12/12/2022] Open
Abstract
Bacteria encode carbonic anhydrases (CAs, EC 4.2.1.1) belonging to three different genetic families, the α-, β-, and γ-classes. By equilibrating CO2 and bicarbonate, these metalloenzymes interfere with pH regulation and other crucial physiological processes of these organisms. The detailed investigations of many such enzymes from pathogenic and non-pathogenic bacteria afford the opportunity to design both novel therapeutic agents, as well as biomimetic processes, for example, for CO2 capture. Investigation of bacterial CA inhibitors and activators may be relevant for finding antibiotics with a new mechanism of action.
Collapse
|
23
|
Perfetto R, Del Prete S, Vullo D, Sansone G, Barone CMA, Rossi M, Supuran CT, Capasso C. Production and covalent immobilisation of the recombinant bacterial carbonic anhydrase (SspCA) onto magnetic nanoparticles. J Enzyme Inhib Med Chem 2017; 32:759-766. [PMID: 28497711 PMCID: PMC6445167 DOI: 10.1080/14756366.2017.1316719] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Carbonic anhydrases (CAs; EC 4.2.1.1) are metalloenzymes with a pivotal potential role in the biomimetic CO2 capture process (CCP) because these biocatalysts catalyse the simple but physiologically crucial reaction of carbon dioxide hydration to bicarbonate and protons in all life kingdoms. The CAs are among the fastest known enzymes, with kcat values of up to 106 s-1 for some members of the superfamily, providing thus advantages when compared with other CCP methods, as they are specific for CO2. Thermostable CAs might be used in CCP technology because of their ability to perform catalysis in operatively hard conditions, typical of the industrial processes. Moreover, the improvement of the enzyme stability and its reuse are important for lowering the costs. These aspects can be overcome by immobilising the enzyme on a specific support. We report in this article that the recombinant thermostable SspCA (α-CA) from the thermophilic bacterium Sulfurihydrogenibium yellowstonense can been heterologously produced by a high-density fermentation of Escherichia coli cultures, and covalently immobilised onto the surface of magnetic Fe3O4 nanoparticles (MNP) via carbodiimide activation reactions. Our results demonstrate that using a benchtop bioprocess station and strategies for optimising the bacterial growth, it is possible to produce at low cost a large amount SspCA. Furthermore, the enzyme stability and storage greatly increased through the immobilisation, as SspCA bound to MNP could be recovered from the reaction mixture by simply using a magnet or an electromagnetic field, due to the strong ferromagnetic properties of Fe3O4.
Collapse
Affiliation(s)
- Rosa Perfetto
- a Istituto di Bioscienze e Biorisorse, CNR , Napoli , Italy
| | - Sonia Del Prete
- a Istituto di Bioscienze e Biorisorse, CNR , Napoli , Italy.,b Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Sesto Fiorentino , Italy
| | - Daniela Vullo
- b Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Sesto Fiorentino , Italy
| | - Giovanni Sansone
- c Dipartimento di Biologia , Università degli Studi di Napoli, Federico II , Napoli , Italy
| | - Carmela M A Barone
- d Dipartimento di Agraria , Università degli Studi di Napoli, Federico II , Portici , Napoli , Italy
| | - Mosè Rossi
- a Istituto di Bioscienze e Biorisorse, CNR , Napoli , Italy
| | - Claudiu T Supuran
- b Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Sesto Fiorentino , Italy
| | | |
Collapse
|
24
|
Vullo D, Del Prete S, Di Fonzo P, Carginale V, Donald WA, Supuran CT, Capasso C. Comparison of the Sulfonamide Inhibition Profiles of the β- and γ-Carbonic Anhydrases from the Pathogenic Bacterium Burkholderia pseudomallei. Molecules 2017; 22:E421. [PMID: 28272358 PMCID: PMC6155308 DOI: 10.3390/molecules22030421] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 02/16/2017] [Accepted: 03/03/2017] [Indexed: 11/25/2022] Open
Abstract
We have cloned, purified, and characterized a β-carbonic anhydrase (CA, EC 4.2.1.1), BpsCAβ, from the pathogenic bacterium Burkholderia pseudomallei, responsible for the tropical disease melioidosis. The enzyme showed high catalytic activity for the physiologic CO₂ hydration reaction to bicarbonate and protons, with the following kinetic parameters: kcat of 1.6 × 10⁵ s-1 and kcat/KM of 3.4 × 10⁷ M-1 s-1. An inhibition study with a panel of 38 sulfonamides and one sulfamate-including 15 compounds that are used clinically-revealed an interesting structure-activity relationship for the interaction of this enzyme with these inhibitors. Many simple sulfonamides and clinically used agents such as topiramate, sulpiride, celecoxib, valdecoxib, and sulthiame were ineffective BpsCAβ inhibitors (KI > 50 µM). Other drugs, such as ethoxzolamide, dorzolamide, brinzolamide, zonisamide, indisulam, and hydrochlorothiazide were moderately potent micromolar inhibitors. The best inhibition was observed with benzene-1,3-disulfonamides-benzolamide and its analogs acetazolamide and methazolamide-which showed KI in the range of 185-745 nM. The inhibition profile of BpsCAβ is very different from that of the γ-class enzyme from the same pathogen, BpsCAγ. Thus, identifying compounds that would effectively interact with both enzymes is relatively challenging. However, benzolamide was one of the best inhibitors of both of these CAs with KI of 653 and 185 nM, respectively, making it an interesting lead compound for the design of more effective agents, which may be useful tools for understanding the pathogenicity of this bacterium.
Collapse
Affiliation(s)
- Daniela Vullo
- Laboratorio di Chimica Bioinorganica, Dipartimento Di Chimica, Università degli Studi di Firenze, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
| | - Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
- Sezione di Scienze Farmaceutiche e Nutraceutiche, Dipartimento Neurofarba, Università degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Pietro Di Fonzo
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - Vincenzo Carginale
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - W Alexander Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia.
| | - Claudiu T Supuran
- Sezione di Scienze Farmaceutiche e Nutraceutiche, Dipartimento Neurofarba, Università degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia.
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
| |
Collapse
|
25
|
Del Prete S, Vullo D, di Fonzo P, Carginale V, Supuran CT, Capasso C. Comparison of the anion inhibition profiles of the β- and γ-carbonic anhydrases from the pathogenic bacterium Burkholderia pseudomallei. Bioorg Med Chem 2017; 25:2010-2015. [PMID: 28238511 DOI: 10.1016/j.bmc.2017.02.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/13/2017] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
Abstract
We report the cloning, purification and characterization of BpsβCA, a β-class carbonic anhydrase (CA, EC 4.2.1.1) from the pathogenic bacterium Burkholderia pseudomallei, the etiological agent of melioidosis, and compare its activity and inhibition with those of the γ-CA from the same organism, BpsγCA, recently investigated by our groups. BpsβCA showed a significant catalytic activity for the physiologic, CO2 hydration reaction, with the following kinetic parameters, kcat of 1.6×105s-1 and kcat/Km of 3.4×107M-1×s-1. The inhibition of BpsβCA with a group of anions and small molecules was also investigated. The best inhibitors were sulfamide, sulfamic acid and phenylarsonic acid, which showed KIs in the range of 83-92µM, whereas phenylboronic acid, fluoride, cyanide, azide, bisulfite, tetraborate, perrhenate, perruthenate, peroxydisulfate, perchlorate, tetrafluoroborate, fluorosulfonate and hexafluorophosphate showed KIs>100mM. Other inhibitors of this new enzyme were bicarbonate, trithiocarbonate, some complex inorganic anions and N,N-diethyldithiocarbamate, which had inhibition constants of 0.32-8.6mM. As little is known of the life cycle and virulence of this bacterium, this type of study may bring information of interest for the development of novel strategies to fight bacterial infection and drug resistance to commonly used antibiotics.
Collapse
Affiliation(s)
- Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; Università degliStudi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Daniela Vullo
- Università degliStudi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Pietro di Fonzo
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Vincenzo Carginale
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Claudiu T Supuran
- Università degliStudi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy; Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di ScienzeFarmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
| |
Collapse
|