Design, synthesis and study of photophysical/biophysical properties of small molecular scaffold peptides and fluorescent β-lactams
dc.contributor.author | Yashmeen, Afsana | |
dc.date.accessioned | 2018-05-30T09:51:09Z | |
dc.date.accessioned | 2023-10-19T12:09:51Z | |
dc.date.available | 2018-05-30T09:51:09Z | |
dc.date.available | 2023-10-19T12:09:51Z | |
dc.date.issued | 2017 | |
dc.description | Supervisor: Subhendu Sekhar Bag | en_US |
dc.description.abstract | This Thesis has a total of five chapters out of which the Chapter 1 is a literature review about the β-hairpin and β-sheet peptidomimetics. This review chapter contains a critical survey of conformationally constrained small molecular scaffold as inducer of particular secondary structure in a peptide, such as β-hairpin and β-sheet peptidomimetics. Chapter 2 includes uracil-di-aza-amino acid (UrAA) as a new family of molecular scaffold with ability to induce β-hairpin structure with H-bonded β-sheet conformation in a short peptide which is demostrated in two designed fluorescent pentapeptides. We established the dual mechanism of exciplex emission in ExcipFRET-peptide 2.61 containing donor-acceptor triazolyl unnatural fluorescent amino acids TMnapAlaDo and TPyAlaDo at N- and C- terminus respectively, forming a FRET pair. On the other hand fluorescent pentapeptide Excim-peptide 2.64 with triazolyl fluorescent unnatural amino acid TPyAlaDo at both the termini showed excimer emission in its β-sheet conformation. Both the peptides maintainning their predefined photophysics were found to interact with a model biomolecule BSA with fluorescence swith-on response. The exploration of sequence specific DNA binding event of UrAA scaffold and study of interaction with other protein biomolecules is the future prospect of this work. | en_US |
dc.identifier.other | ROLL NO.11612202 | |
dc.identifier.uri | https://gyan.iitg.ac.in/handle/123456789/962 | |
dc.language.iso | en | en_US |
dc.relation.ispartofseries | TH-1707; | |
dc.subject | CHEMISTRY | en_US |
dc.title | Design, synthesis and study of photophysical/biophysical properties of small molecular scaffold peptides and fluorescent β-lactams | en_US |
dc.type | Thesis | en_US |
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