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Maiolo D, Pizzi A, Gori A, Bergamaschi G, Pigliacelli C, Gazzera L, Consonni A, Baggi F, Moda F, Baldelli Bombelli F, Metrangolo P, Resnati G. Enhanced self-assembly of the 7–12 sequence of amyloid-β peptide by tyrosine bromination. Supramol Chem 2020. [DOI: 10.1080/10610278.2020.1734203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Daniele Maiolo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | - Andrea Pizzi
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | - Alessandro Gori
- Istituto Di Scienze E Tecnologie Chimiche, National Research Council of Italy, Milano, Italy
| | - Greta Bergamaschi
- Istituto Di Scienze E Tecnologie Chimiche, National Research Council of Italy, Milano, Italy
| | - Claudia Pigliacelli
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
- Hyber Center of Excellence, Department of Applied Physics, Aalto University, Espoo, Finland
| | - Lara Gazzera
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | | | - Fulvio Baggi
- Fondazione IRCCS Istituto Neurologico “Carlo Besta”, 20133 Milano, Italy
| | - Fabio Moda
- Fondazione IRCCS Istituto Neurologico “Carlo Besta”, 20133 Milano, Italy
| | - Francesca Baldelli Bombelli
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
| | - Pierangelo Metrangolo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
- Hyber Center of Excellence, Department of Applied Physics, Aalto University, Espoo, Finland
| | - Giuseppe Resnati
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico Di Milano, Milano, Italy
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Samui S, Biswas S, Roy K, Deb I, Naskar J. Engineering of Supramolecular β-Sheet and Nontoxic Amyloid Fibrils from Synthetic Oligopeptides Containing γ-Aminobutyric Acid as the N-Terminal Residue. ACS Chem Neurosci 2019; 10:2915-2918. [PMID: 31082196 DOI: 10.1021/acschemneuro.9b00119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Here we demonstrate that three synthetic tripeptides containing conformationally flexible γ-aminobutyric acid (γ-Abu) as the N-terminal residue form supramolecular β-sheet and nanofibrillar aggregates upon self-association in aqueous medium. Congo red and thioflavin T binding study establish that these nanofibrillar aggregates are amyloidogenic in nature. The MTT cell survival assay suggests that these amyloid-like nanofibrillar aggregates are nontoxic toward cultured Neuro 2A cells. Interestingly, none of these tripeptides bear sequence identity with any amyloid forming proteins or peptides; however upon self-association, they form supramolecular β-sheet and amyloid-like nanofibrils those are nontoxic in nature. The results highlight the self-assembling nature of the conformationally flexible peptides in aqueous environment and support the hypothesis that amyloid formation is the intrinsic property of the polypeptide chain. Also the cytotoxicity is not predictive from amyloid fibril formation alone. Such nontoxic amyloid fibrils can be exploited in future to design functional biomaterials for various biomedical applications.
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Affiliation(s)
- Satyabrata Samui
- Department of Biochemistry & Biophysics, University of Kalyani, Nadia, WB 741235, India
| | - Soumi Biswas
- Department of Biochemistry & Biophysics, University of Kalyani, Nadia, WB 741235, India
| | - Kaninika Roy
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Rd., Kolkata, 700019, India
| | - Ishani Deb
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Rd., Kolkata, 700019, India
| | - Jishu Naskar
- Department of Biochemistry & Biophysics, University of Kalyani, Nadia, WB 741235, India
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Chan KH, Xue B, Robinson RC, Hauser CAE. Systematic Moiety Variations of Ultrashort Peptides Produce Profound Effects on Self-Assembly, Nanostructure Formation, Hydrogelation, and Phase Transition. Sci Rep 2017; 7:12897. [PMID: 29018249 PMCID: PMC5635115 DOI: 10.1038/s41598-017-12694-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 09/13/2017] [Indexed: 12/18/2022] Open
Abstract
Self-assembly of small biomolecules is a prevalent phenomenon that is increasingly being recognised to hold the key to building complex structures from simple monomeric units. Small peptides, in particular ultrashort peptides containing up to seven amino acids, for which our laboratory has found many biomedical applications, exhibit immense potential in this regard. For next-generation applications, more intricate control is required over the self-assembly processes. We seek to find out how subtle moiety variation of peptides can affect self-assembly and nanostructure formation. To this end, we have selected a library of 54 tripeptides, derived from systematic moiety variations from seven tripeptides. Our study reveals that subtle structural changes in the tripeptides can exert profound effects on self-assembly, nanostructure formation, hydrogelation, and even phase transition of peptide nanostructures. By comparing the X-ray crystal structures of two tripeptides, acetylated leucine-leucine-glutamic acid (Ac-LLE) and acetylated tyrosine-leucine-aspartic acid (Ac-YLD), we obtained valuable insights into the structural factors that can influence the formation of supramolecular peptide structures. We believe that our results have major implications on the understanding of the factors that affect peptide self-assembly. In addition, our findings can potentially assist current computational efforts to predict and design self-assembling peptide systems for diverse biomedical applications.
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Affiliation(s)
- Kiat Hwa Chan
- Institute of Bioengineering and Nanotechnology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138669, Singapore. .,Division of Science, Yale-NUS College, 16 College Avenue West, Singapore, 138527, Singapore.
| | - Bo Xue
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138673, Singapore.,NUS Synthetic Biology for Clinical and Technological Innovation, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117597, Singapore
| | - Robert C Robinson
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138673, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117597, Singapore.,Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530, Japan
| | - Charlotte A E Hauser
- Institute of Bioengineering and Nanotechnology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138669, Singapore. .,Laboratory for Nanomedicine, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
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Dutta A, Drew M, Pramanik A. Amyloid-Like Fibrillogenesis through Supramolecular Helix-Mediated Self-Assembly of Tetrapeptides Containing Non-Coded α-Aminoisobutyric Acid (Aib) and 3-Aminobenzoic Acid (m-ABA). Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Dutta A, Chattopadhyay D, Pramanik A. Self-assembling tripeptide as organogelator: the role of aromatic π-stacking interactions in gel formation. Supramol Chem 2010. [DOI: 10.1080/10610270903254142] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Arpita Dutta
- a Department of Chemistry , University of Calcutta , 92, A.P.C. Road, Kolkata, 700009, India
| | - Dipankar Chattopadhyay
- b Department of Polymer Science and Technology , University of Calcutta , 92, A.P.C. Road, Kolkata, 700009, India
| | - Animesh Pramanik
- a Department of Chemistry , University of Calcutta , 92, A.P.C. Road, Kolkata, 700009, India
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Dutta A, Dutt A, Drew MGB, Pramanik A. Supramolecular helix and β-sheet through self-assembly of two isomeric tetrapeptides in crystals and formation of filaments and ribbons in the solid state. Supramol Chem 2008. [DOI: 10.1080/10610270701565194] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Arpita Dutta
- a Department of Chemistry , University of Calcutta , 92, A. P. C. Road, Kolkata, 700 009, India
| | - Anita Dutt
- a Department of Chemistry , University of Calcutta , 92, A. P. C. Road, Kolkata, 700 009, India
| | - Michael G. B. Drew
- b School of Chemistry , The University of Reading , Whiteknights, Reading, RG6 6AD, UK
| | - Animesh Pramanik
- a Department of Chemistry , University of Calcutta , 92, A. P. C. Road, Kolkata, 700 009, India
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