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Haidar S, Amesty Á, Oramas-Royo S, Götz C, El-Awaad E, Kaiser J, Bödecker S, Arnold A, Aichele D, Amaro-Luis JM, Estévez-Braun A, Jose J. 1,2,3-Triazole-totarol conjugates as potent PIP5K1α lipid kinase inhibitors. Bioorg Med Chem 2024; 105:117727. [PMID: 38669736 DOI: 10.1016/j.bmc.2024.117727] [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] [Received: 12/18/2023] [Revised: 03/24/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024]
Abstract
The human phosphatidylinositol 4-phosphate 5-kinase type I α (hPIP5K1α) plays a key role in the development of prostate cancer. In this work, seventeen derivatives of the natural diterpene totarol were prepared by copper(I)-catalysed Huisgen 1,3-dipolar cycloaddition reaction of the correspondingO-propargylated totarol with aryl or alkyl azides and screened for their inhibitory activities toward hPIP5K1α. Five compounds, 3a, 3e, 3f, 3i, and 3r, strongly inhibited the enzyme activity with IC50 values of 1.44, 0.46, 1.02, 0.79, and 3.65 µM, respectively, with the most potent inhibitor 3e 13-[(1-(3-nitrophenyl)triazol-4yl)methoxy]-totara-8,11,13-triene). These compounds were evaluated on their antiproliferative effects in a panel of prostate cancer cell lines. Compound 3r inhibited the proliferation of LNCaP, PC3 and DU145 cells at 20 µM, strongly, but also has strong cytotoxic effects on all tested cells.
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Affiliation(s)
- Samer Haidar
- Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, PharmaCampus, Corrensstr. 48, 48149 Münster, Germany; Faculty of Pharmacy, 17 April Street, Damascus University, Damascus 9411, Syria
| | - Ángel Amesty
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez N° 2, 38206, La Laguna, Tenerife, Spain
| | - Sandra Oramas-Royo
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez N° 2, 38206, La Laguna, Tenerife, Spain
| | - Claudia Götz
- Universität des Saarlandes - Campus Homburg, Medizinische Biochemie und Molekularbiologie, Kirrberger Str., Geb. 44, D-66421 Homburg, Germany
| | - Ehab El-Awaad
- Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, PharmaCampus, Corrensstr. 48, 48149 Münster, Germany; Department of Pharmacology, Faculty of Medicine, Assiut University, 71515 Egypt
| | - Jana Kaiser
- Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, PharmaCampus, Corrensstr. 48, 48149 Münster, Germany
| | - Sarah Bödecker
- Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, PharmaCampus, Corrensstr. 48, 48149 Münster, Germany
| | - Amelie Arnold
- Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, PharmaCampus, Corrensstr. 48, 48149 Münster, Germany
| | - Dagmar Aichele
- Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, PharmaCampus, Corrensstr. 48, 48149 Münster, Germany
| | - Juan M Amaro-Luis
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez N° 2, 38206, La Laguna, Tenerife, Spain; Departamento de Química, Universidad de los Andes (Mérida), 5101, Venezuela
| | - Ana Estévez-Braun
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez N° 2, 38206, La Laguna, Tenerife, Spain.
| | - Joachim Jose
- Universität Münster, Institut für Pharmazeutische und Medizinische Chemie, PharmaCampus, Corrensstr. 48, 48149 Münster, Germany.
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Ali J, Faridi S, Kashyap A, Shabnam, Noori R, Sardar M. Surface expression of carbonic anhydrase on E. coli as a sustainable approach for enzymatic CO 2 capture. Enzyme Microb Technol 2024; 176:110422. [PMID: 38402827 DOI: 10.1016/j.enzmictec.2024.110422] [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] [Received: 12/09/2023] [Revised: 01/22/2024] [Accepted: 02/16/2024] [Indexed: 02/27/2024]
Abstract
The utilisation of carbonic anhydrase (CA) in CO2 sequestration is becoming prominent as an efficient, environment friendly and rapid catalyst for capturing CO2 from industrial emissions. However, the application of CA enzyme in soluble form is constrained due to its poor stability in operational conditions of CO2 capture and also production cost of the enzyme. Addressing these limitations, the present study focuses on the surface display of CA from Bacillus halodurans (BhCA) on E coli aiming to contribute to the cost-effectiveness of carbon capture through CA technology. This involved the fusion of the BhCA-encoding gene with the adhesion molecule involved in diffuse adherence (AIDA-I) autotransporter, resulting in the efficient display of BhCA (595 ± 60 U/gram dry cell weight). Verification of the surface display of BhCA was accomplished by conjugating with FITC labelled anti-his antibody followed by fluorescence-activated cell sorting (FACS) and cellular fractionation in conjunction with zymography. Biochemical characterisation of whole-cell biocatalyst revealed a noteworthy enhancement in thermostability, improvement in the thermostability with T1/2 of 90 ± 1.52 minutes at 50 ˚C, 36 ± 2.51 minutes at 60 ˚C and18 ± 1.52 minutes at 80˚C. Surface displayed BhCA displayed remarkable reusability retaining 100% activity even after 15 cycles. Surface displayed BhCA displayed highly alkali stable nature like free counterpart in solution. The alkali stability of the surface-displayed BhCA was comparable to its free counterpart in solution. Furthermore, the study investigated the impact of different metal ions, modulators, and detergents on the whole-cell biocatalysts. The present work represents the first report on surface display of CA utilising the AIDA-1 autotransporter.
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Affiliation(s)
- Juned Ali
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Shazia Faridi
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Amuliya Kashyap
- Department of Microbiology, University of Delhi South Campus, New Delhi 110021, India
| | - Shabnam
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Rubia Noori
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Meryam Sardar
- Enzyme Technology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India.
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Clarke KR, Hor L, Pilapitiya A, Luirink J, Paxman JJ, Heras B. Phylogenetic Classification and Functional Review of Autotransporters. Front Immunol 2022; 13:921272. [PMID: 35860281 PMCID: PMC9289746 DOI: 10.3389/fimmu.2022.921272] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/06/2022] [Indexed: 11/30/2022] Open
Abstract
Autotransporters are the core component of a molecular nano-machine that delivers cargo proteins across the outer membrane of Gram-negative bacteria. Part of the type V secretion system, this large family of proteins play a central role in controlling bacterial interactions with their environment by promoting adhesion to surfaces, biofilm formation, host colonization and invasion as well as cytotoxicity and immunomodulation. As such, autotransporters are key facilitators of fitness and pathogenesis and enable co-operation or competition with other bacteria. Recent years have witnessed a dramatic increase in the number of autotransporter sequences reported and a steady rise in functional studies, which further link these proteins to multiple virulence phenotypes. In this review we provide an overview of our current knowledge on classical autotransporter proteins, the archetype of this protein superfamily. We also carry out a phylogenetic analysis of their functional domains and present a new classification system for this exquisitely diverse group of bacterial proteins. The sixteen phylogenetic divisions identified establish sensible relationships between well characterized autotransporters and inform structural and functional predictions of uncharacterized proteins, which may guide future research aimed at addressing multiple unanswered aspects in this group of therapeutically important bacterial factors.
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Affiliation(s)
- Kaitlin R. Clarke
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Lilian Hor
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Akila Pilapitiya
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Joen Luirink
- Department of Molecular Microbiology, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit, Amsterdam, Netherlands
| | - Jason J. Paxman
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
- *Correspondence: Begoña Heras, ; Jason J. Paxman,
| | - Begoña Heras
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
- *Correspondence: Begoña Heras, ; Jason J. Paxman,
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Saini K, Gupta R. Cell Surface Expression of γ-CGTase from Evansella caseinilytica on E. coli: Application in the enzymatic conversion of starch to γ-cyclodextrin. Enzyme Microb Technol 2022; 159:110066. [DOI: 10.1016/j.enzmictec.2022.110066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/15/2022]
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